Windows
Analysis Report
flexi.exe
Overview
General Information
Detection
Score: | 2 |
Range: | 0 - 100 |
Confidence: | 80% |
Signatures
Classification
- System is w11x64_office
flexi.exe (PID: 6600 cmdline:
"C:\Users\ user\Deskt op\flexi.e xe" MD5: A5C8F336F1650812CA490982DB01E986)
- cleanup
- • Compliance
- • Networking
- • System Summary
- • Data Obfuscation
Click to jump to signature section
There are no malicious signatures, click here to show all signatures.
Source: | Static PE information: |
Source: | UDP traffic detected without corresponding DNS query: |
Source: | DNS traffic detected: |
Source: | Static PE information: |
Source: | Static PE information: |
Source: | Classification label: |
Source: | Key opened: | Jump to behavior |
Source: | Section loaded: | Jump to behavior | ||
Source: | Section loaded: | Jump to behavior | ||
Source: | Section loaded: | Jump to behavior | ||
Source: | Section loaded: | Jump to behavior | ||
Source: | Section loaded: | Jump to behavior | ||
Source: | Section loaded: | Jump to behavior | ||
Source: | Section loaded: | Jump to behavior | ||
Source: | Section loaded: | Jump to behavior | ||
Source: | Section loaded: | Jump to behavior | ||
Source: | Section loaded: | Jump to behavior |
Source: | Static file information: |
Source: | Static PE information: |
Source: | Static PE information: |
Source: | Static PE information: |
Source: | Static PE information: | ||
Source: | Static PE information: | ||
Source: | Static PE information: |
Source: | Static PE information: |
Reconnaissance | Resource Development | Initial Access | Execution | Persistence | Privilege Escalation | Defense Evasion | Credential Access | Discovery | Lateral Movement | Collection | Command and Control | Exfiltration | Impact |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gather Victim Identity Information | Acquire Infrastructure | Valid Accounts | Windows Management Instrumentation | 1 DLL Side-Loading | 1 DLL Side-Loading | 2 Software Packing | OS Credential Dumping | 1 System Information Discovery | Remote Services | Data from Local System | 1 Non-Application Layer Protocol | Exfiltration Over Other Network Medium | Abuse Accessibility Features |
Credentials | Domains | Default Accounts | Scheduled Task/Job | Boot or Logon Initialization Scripts | Boot or Logon Initialization Scripts | 1 DLL Side-Loading | LSASS Memory | Application Window Discovery | Remote Desktop Protocol | Data from Removable Media | 1 Application Layer Protocol | Exfiltration Over Bluetooth | Network Denial of Service |
Email Addresses | DNS Server | Domain Accounts | At | Logon Script (Windows) | Logon Script (Windows) | 1 Obfuscated Files or Information | Security Account Manager | Query Registry | SMB/Windows Admin Shares | Data from Network Shared Drive | Steganography | Automated Exfiltration | Data Encrypted for Impact |
This section contains all screenshots as thumbnails, including those not shown in the slideshow.
Name | IP | Active | Malicious | Antivirus Detection | Reputation |
---|---|---|---|---|---|
onedscolprdwus21.westus.cloudapp.azure.com | 20.189.173.27 | true | false | high | |
browser.events.data.msn.cn | unknown | unknown | false | high |
Joe Sandbox version: | 42.0.0 Malachite |
Analysis ID: | 1653503 |
Start date and time: | 2025-04-01 10:47:15 +02:00 |
Joe Sandbox product: | CloudBasic |
Overall analysis duration: | 0h 3m 54s |
Hypervisor based Inspection enabled: | false |
Report type: | full |
Cookbook file name: | default.jbs |
Analysis system description: | Windows 11 23H2 with Office Professional Plus 2021, Chrome 131, Firefox 133, Adobe Reader DC 24, Java 8 Update 431, 7zip 24.09 |
Number of analysed new started processes analysed: | 20 |
Number of new started drivers analysed: | 0 |
Number of existing processes analysed: | 0 |
Number of existing drivers analysed: | 0 |
Number of injected processes analysed: | 0 |
Technologies: |
|
Analysis Mode: | default |
Analysis stop reason: | Timeout |
Sample name: | flexi.exe |
Detection: | CLEAN |
Classification: | clean2.winEXE@1/0@1/0 |
Cookbook Comments: |
|
- Exclude process from analysis
(whitelisted): dllhost.exe, Sy stemSettingsBroker.exe, SIHCli ent.exe, appidcertstorecheck.e xe, conhost.exe, svchost.exe - Excluded IPs from analysis (wh
itelisted): 20.109.210.53 - Excluded domains from analysis
(whitelisted): slscr.update.m icrosoft.com, ctldl.windowsupd ate.com, c.pki.goog, fe3cr.del ivery.mp.microsoft.com - Not all processes where analyz
ed, report is missing behavior information
Match | Associated Sample Name / URL | SHA 256 | Detection | Threat Name | Link | Context |
---|---|---|---|---|---|---|
onedscolprdwus21.westus.cloudapp.azure.com | Get hash | malicious | Unknown | Browse |
| |
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | RedLine | Browse |
|
File type: | |
Entropy (8bit): | 7.103011134576926 |
TrID: |
|
File name: | flexi.exe |
File size: | 5'590'503 bytes |
MD5: | a5c8f336f1650812ca490982db01e986 |
SHA1: | 8e3efaf68a85102ef6da4e471bd47b4e12847eda |
SHA256: | bbcfc9e5628567631dc81e101282e2d2f402a4921fe8cb0cbaa4d80aa22bd832 |
SHA512: | 5030b3aa1a3007ee2a93adfcb9cb34cceab15456b57e3db832d83f902761693e7dd5be98b9ef58477b9c0605e2dde8e59e7a184dcc1f4a9d6af2fb46eaa4d20f |
SSDEEP: | 98304:L/3Ec2rVbet4oevgWCn0dTVpmUCyhoSChvJld95N0:L/3d2r5etTBaVp9CQ36Jld9j0 |
TLSH: | 2B4612B076A4DD4DD941063D5DB6C2DA2B39BD41CF22575332E07F6FAEBA2C22E51202 |
File Content Preview: | MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..L...P.......C...................."...._...........@...........................`.......?....... ............................ |
Icon Hash: | 90969696969696a8 |
Entrypoint: | 0x9ff000 |
Entrypoint Section: | .AKS3 |
Digitally signed: | false |
Imagebase: | 0x400000 |
Subsystem: | windows gui |
Image File Characteristics: | RELOCS_STRIPPED, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, 32BIT_MACHINE, DEBUG_STRIPPED |
DLL Characteristics: | |
Time Stamp: | 0x2E2E350 [Thu Jul 15 11:02:40 1971 UTC] |
TLS Callbacks: | |
CLR (.Net) Version: | |
OS Version Major: | 4 |
OS Version Minor: | 0 |
File Version Major: | 4 |
File Version Minor: | 0 |
Subsystem Version Major: | 4 |
Subsystem Version Minor: | 0 |
Import Hash: | 36eccbb6fdd5e9f03b588dff2b113ed7 |
Instruction |
---|
push edi |
push esi |
push ebx |
push ecx |
call 00007F1E80B78726h |
mov edi, 05720558h |
add byte ptr [eax], al |
push eax |
mov esi, dword ptr [eax] |
add esi, eax |
mov edi, esi |
lodsd |
shl eax, 0Ch |
mov ecx, eax |
push eax |
lodsd |
sub ecx, eax |
add ecx, edi |
mov esi, ecx |
mov ecx, eax |
push edi |
push ecx |
call 00007F1E80B78726h |
mov ecx, 47C2815Ah |
add eax, 128A0000h |
sub ecx, 01h |
jne 00007F1E80B78723h |
or dword ptr [ebx+edx*8+0224850Fh], 00810000h |
jmp 00007F1E80B7872Bh |
jc 00007F1E80B789B0h |
jmp 00007F1E80B788E1h |
cmp ecx, edx |
jnc 00007F1E80B7876Bh |
mov ebx, ecx |
lodsb |
inc ecx |
jne 00007F1E80B78723h |
mov eax, 850FD38Ch |
dec ebp |
add al, byte ptr [eax] |
add byte ptr [eax+7209EBC1h], bh |
xor al, 24h |
Name | Virtual Address | Virtual Size | Is in Section |
---|---|---|---|
IMAGE_DIRECTORY_ENTRY_EXPORT | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_IMPORT | 0xb7000 | 0x458 | .AKS2 |
IMAGE_DIRECTORY_ENTRY_RESOURCE | 0x600000 | 0x284 | .rsrc |
IMAGE_DIRECTORY_ENTRY_EXCEPTION | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_SECURITY | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_BASERELOC | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_DEBUG | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_COPYRIGHT | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_GLOBALPTR | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_TLS | 0x5ff5a0 | 0x18 | .AKS3 |
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_IAT | 0xb71a4 | 0x88 | .AKS2 |
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_RESERVED | 0x0 | 0x0 |
Name | Virtual Address | Virtual Size | Raw Size | MD5 | Xored PE | ZLIB Complexity | File Type | Entropy | Characteristics |
---|---|---|---|---|---|---|---|---|---|
.AKS1 | 0x1000 | 0xb6000 | 0x54000 | 9905ad0b42d73b5c771f64fab3fe6f9e | False | 1.0003226143973214 | OpenPGP Secret Key | 7.999350780667601 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE |
.AKS2 | 0xb7000 | 0x548000 | 0x3a2a00 | 8f5f2bbcdae3c6d5fb595a4efb94d620 | unknown | unknown | unknown | unknown | IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE |
.AKS3 | 0x5ff000 | 0x5e3 | 0x600 | 7d2ab3aa7e8ca18288bd1bd2eecaa522 | False | 0.798828125 | data | 6.355007480390883 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE |
.rsrc | 0x600000 | 0x284 | 0x400 | 8179e4231cf9119c315519b983403345 | False | 0.3447265625 | data | 3.911572949878916 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE |
Name | RVA | Size | Type | Language | Country | ZLIB Complexity |
---|---|---|---|---|---|---|
RT_MANIFEST | 0x600058 | 0x22c | XML 1.0 document, ASCII text, with CRLF line terminators | English | United States | 0.5503597122302158 |
DLL | Import |
---|---|
KERNEL32 | GetModuleHandleA, GetProcAddress |
user32.dll | GetDC |
advapi32.dll | GetAce |
iphlpapi.dll | GetIfTable |
shell32.dll | ILFree |
hid.dll | HidP_GetCaps |
setupapi.dll | SetupInstallFileA |
dhcpcsvc.dll | DhcpIsEnabled |
dhcpcsvc6.dll | Dhcpv6IsEnabled |
psapi.dll | EnumProcesses |
wsock32.dll | bind |
alleg44.dll | blit |
libgcc_s_dw2-1.dll | __udivdi3 |
libstdc++-6.dll | _Znaj |
TVicHW32.dll | _MaskIRQ@8 |
msvcrt.dll | cos |
GDI32.dll | DeleteDC |
Language of compilation system | Country where language is spoken | Map |
---|---|---|
English | United States |
Download Network PCAP: filtered – full
Timestamp | Source Port | Dest Port | Source IP | Dest IP |
---|---|---|---|---|
Apr 1, 2025 10:48:08.798752069 CEST | 59393 | 53 | 192.168.2.24 | 1.1.1.1 |
Apr 1, 2025 10:48:08.883622885 CEST | 53 | 59393 | 1.1.1.1 | 192.168.2.24 |
Apr 1, 2025 10:48:55.385200024 CEST | 53 | 56394 | 162.159.36.2 | 192.168.2.24 |
Timestamp | Source IP | Dest IP | Trans ID | OP Code | Name | Type | Class | DNS over HTTPS |
---|---|---|---|---|---|---|---|---|
Apr 1, 2025 10:48:08.798752069 CEST | 192.168.2.24 | 1.1.1.1 | 0x2782 | Standard query (0) | A (IP address) | IN (0x0001) | false |
Timestamp | Source IP | Dest IP | Trans ID | Reply Code | Name | CName | Address | Type | Class | DNS over HTTPS |
---|---|---|---|---|---|---|---|---|---|---|
Apr 1, 2025 10:48:08.883622885 CEST | 1.1.1.1 | 192.168.2.24 | 0x2782 | No error (0) | global.asimov.events.data.trafficmanager.net | CNAME (Canonical name) | IN (0x0001) | false | ||
Apr 1, 2025 10:48:08.883622885 CEST | 1.1.1.1 | 192.168.2.24 | 0x2782 | No error (0) | onedscolprdwus21.westus.cloudapp.azure.com | CNAME (Canonical name) | IN (0x0001) | false | ||
Apr 1, 2025 10:48:08.883622885 CEST | 1.1.1.1 | 192.168.2.24 | 0x2782 | No error (0) | 20.189.173.27 | A (IP address) | IN (0x0001) | false |
Click to jump to process
Click to jump to process
Target ID: | 1 |
Start time: | 04:48:16 |
Start date: | 01/04/2025 |
Path: | C:\Users\user\Desktop\flexi.exe |
Wow64 process (32bit): | true |
Commandline: | |
Imagebase: | 0x400000 |
File size: | 5'590'503 bytes |
MD5 hash: | A5C8F336F1650812CA490982DB01E986 |
Has elevated privileges: | true |
Has administrator privileges: | true |
Programmed in: | C, C++ or other language |
Reputation: | low |
Has exited: | false |