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Windows
Analysis Report
1.exe
Overview
General Information
Detection
FormBook
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Found malware configuration
Multi AV Scanner detection for submitted file
Yara detected FormBook
Malicious sample detected (through community Yara rule)
Yara detected AntiVM3
Antivirus / Scanner detection for submitted sample
System process connects to network (likely due to code injection or exploit)
Antivirus detection for URL or domain
Multi AV Scanner detection for domain / URL
Snort IDS alert for network traffic
Sample uses process hollowing technique
Maps a DLL or memory area into another process
.NET source code references suspicious native API functions
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Machine Learning detection for sample
.NET source code contains potential unpacker
.NET source code contains method to dynamically call methods (often used by packers)
Queues an APC in another process (thread injection)
.NET source code contains very large array initializations
.NET source code contains very large strings
Tries to detect virtualization through RDTSC time measurements
Modifies the context of a thread in another process (thread injection)
C2 URLs / IPs found in malware configuration
Tries to resolve many domain names, but no domain seems valid
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Yara signature match
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Contains functionality for execution timing, often used to detect debuggers
Contains long sleeps (>= 3 min)
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found inlined nop instructions (likely shell or obfuscated code)
Sample file is different than original file name gathered from version info
Contains functionality to read the PEB
Checks if the current process is being debugged
Found large amount of non-executed APIs
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Classification
- System is w10x64
- 1.exe (PID: 1892 cmdline:
C:\Users\u ser\Deskto p\1.exe MD5: 60FF6DCFE9ED4741B4FFB91CD3BD6895) - 1.exe (PID: 2136 cmdline:
C:\Users\u ser\Deskto p\1.exe MD5: 60FF6DCFE9ED4741B4FFB91CD3BD6895) - explorer.exe (PID: 1028 cmdline:
C:\Windows \Explorer. EXE MD5: 662F4F92FDE3557E86D110526BB578D5) - colorcpl.exe (PID: 3716 cmdline:
C:\Windows \SysWOW64\ colorcpl.e xe MD5: DB71E132EBF1FEB6E93E8A2A0F0C903D) - cmd.exe (PID: 2212 cmdline:
/c del "C: \Users\use r\Desktop\ 1.exe" MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 3948 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Formbook, Formbo | FormBook contains a unique crypter RunPE that has unique behavioral patterns subject to detection. It was initially called "Babushka Crypter" by Insidemalware. |
{"C2 list": ["www.switchtoambitwithmirtha.com/jskg/"], "decoy": ["jajaten.com", "pnorg.net", "rccarquibogota.com", "marcomarabiamea.com", "theligue.com", "mdearpet.com", "barokahsrivillage.com", "wisdomtoothguru.com", "srteamsex.com", "erotictoybox.com", "278698.com", "victimaccidents.com", "bootyfashions.com", "stomasto.site", "canalysisconsulting.com", "printandmail.legal", "bestcureforbackpain.com", "apanifitness.com", "smartabletech.com", "facialsteamerofficial.com", "cookclassesfishes.com", "ayanmobile.com", "cannapharmaus.com", "lactationdrink.com", "enrgsystems.info", "f1leghecodemasters.net", "topazkibblez.com", "appbecause.com", "256barrington.com", "snapmoneyexchangellc.com", "kriolland.com", "7255399.com", "realoneathletics.info", "illustriousevents.com", "moonman.services", "dog2meeting.com", "successwithyolandafgreen.com", "freshlookconsulting.net", "3bcreditwatch.com", "lacroixundkress.com", "beaujolaisboston.com", "breakawayfc.com", "bollmasonry.com", "jiujitsuspa.com", "zirangaobai.com", "capitalmedicalsupplies.net", "swavhca.com", "pereiranatalia.com", "lbarco.com", "revistabrasileiramarketing.info", "carportaccessory.com", "kvrkl.com", "handledlife.com", "groups-post-sales-2678493.xyz", "rapidprintz.com", "buzzkeel.com", "divinityemerald.com", "ppc-listing.info", "coryfireshop.com", "mimipopuppicnics.com", "votehealey.com", "saraadamchak.com", "winwinwin365.net", "tprmt.com"]}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
Windows_Trojan_Diceloader_15eeb7b9 | unknown | unknown |
| |
Windows_Trojan_Diceloader_15eeb7b9 | unknown | unknown |
| |
Windows_Trojan_Diceloader_15eeb7b9 | unknown | unknown |
| |
JoeSecurity_FormBook | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Click to see the 31 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
Formbook_1 | autogenerated rule brought to you by yara-signator | Felix Bilstein - yara-signator at cocacoding dot com |
| |
Formbook | detect Formbook in memory | JPCERT/CC Incident Response Group |
| |
Click to see the 20 entries |
⊘No Sigma rule has matched
Timestamp: | 192.168.2.534.149.87.4549725802031412 11/21/23-03:33:45.473798 |
SID: | 2031412 |
Source Port: | 49725 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.5167.172.69.4049719802031412 11/21/23-03:32:02.056719 |
SID: | 2031412 |
Source Port: | 49719 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.523.227.38.7449718802031412 11/21/23-03:31:50.310124 |
SID: | 2031412 |
Source Port: | 49718 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.534.149.87.4549713802031412 11/21/23-03:30:48.646835 |
SID: | 2031412 |
Source Port: | 49713 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.523.227.38.7449723802031412 11/21/23-03:33:19.042134 |
SID: | 2031412 |
Source Port: | 49723 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.5217.160.0.16749715802031412 11/21/23-03:31:13.651241 |
SID: | 2031412 |
Source Port: | 49715 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.523.227.38.7449722802031412 11/21/23-03:32:47.926567 |
SID: | 2031412 |
Source Port: | 49722 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.5167.172.69.4049712802031412 11/21/23-03:30:32.559422 |
SID: | 2031412 |
Source Port: | 49712 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.534.149.87.4549720802031412 11/21/23-03:32:18.840591 |
SID: | 2031412 |
Source Port: | 49720 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.5217.160.0.16749721802031412 11/21/23-03:32:42.602914 |
SID: | 2031412 |
Source Port: | 49721 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.5167.172.69.4049724802031412 11/21/23-03:33:29.744408 |
SID: | 2031412 |
Source Port: | 49724 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.523.227.38.7449716802031412 11/21/23-03:31:19.303012 |
SID: | 2031412 |
Source Port: | 49716 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.5217.160.0.16749726802031412 11/21/23-03:34:08.968993 |
SID: | 2031412 |
Source Port: | 49726 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Malware Configuration Extractor: |
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Source: | Code function: | 2_2_004155FB | |
Source: | Code function: | 4_2_02E355FB |
Networking |
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Source: | Network Connect: | Jump to behavior | ||
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