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Windows
Analysis Report
fjerbregners_patrol.exe
Overview
General Information
Detection
FormBook, GuLoader
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Multi AV Scanner detection for submitted file
Yara detected FormBook
Malicious sample detected (through community Yara rule)
System process connects to network (likely due to code injection or exploit)
Yara detected GuLoader
Snort IDS alert for network traffic
Tries to steal Mail credentials (via file / registry access)
Maps a DLL or memory area into another process
Writes to foreign memory regions
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Injects a PE file into a foreign processes
Queues an APC in another process (thread injection)
Modifies the context of a thread in another process (thread injection)
Tries to harvest and steal browser information (history, passwords, etc)
Uses 32bit PE files
Yara signature match
Contains functionality to shutdown / reboot the system
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)
JA3 SSL client fingerprint seen in connection with other malware
Contains functionality to call native functions
Contains functionality to dynamically determine API calls
Contains functionality for execution timing, often used to detect debuggers
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Sample file is different than original file name gathered from version info
Drops PE files
Tries to load missing DLLs
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)
Contains functionality for read data from the clipboard
Classification
- System is w10x64native
- fjerbregners_patrol.exe (PID: 5656 cmdline:
C:\Users\u ser\Deskto p\fjerbreg ners_patro l.exe MD5: D7C6BA8AF8325A9FC1AC197916EECFDA) - fjerbregners_patrol.exe (PID: 3696 cmdline:
C:\Users\u ser\Deskto p\fjerbreg ners_patro l.exe MD5: D7C6BA8AF8325A9FC1AC197916EECFDA) - RAVCpl64.exe (PID: 7696 cmdline:
"C:\Progra m Files\Re altek\Audi o\HDA\RAVC pl64.exe" -s MD5: 731FB4B2E5AFBCADAABB80D642E056AC) - msdt.exe (PID: 2872 cmdline:
C:\Windows \SysWOW64\ msdt.exe MD5: A9AB42610361BF6432259061737EA309) - explorer.exe (PID: 5308 cmdline:
C:\Windows \Explorer. EXE MD5: 5EA66FF5AE5612F921BC9DA23BAC95F7) - firefox.exe (PID: 4228 cmdline:
C:\Program Files\Moz illa Firef ox\Firefox .exe MD5: FA9F4FC5D7ECAB5A20BF7A9D1251C851)
- 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. |
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
CloudEyE, GuLoader | CloudEyE (initially named GuLoader) is a small VB5/6 downloader. It typically downloads RATs/Stealers, such as Agent Tesla, Arkei/Vidar, Formbook, Lokibot, Netwire and Remcos, often but not always from Google Drive. The downloaded payload is xored. | No Attribution |
⊘No configs have been found
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Click to see the 4 entries |
⊘No Sigma rule has matched
Timestamp: | 192.168.11.20104.21.62.3049727802844299 08/10/23-10:19:28.156085 |
SID: | 2844299 |
Source Port: | 49727 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20169.150.247.3949735802844299 08/10/23-10:19:54.432908 |
SID: | 2844299 |
Source Port: | 49735 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20119.18.54.5149743802844299 08/10/23-10:20:20.776722 |
SID: | 2844299 |
Source Port: | 49743 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.201.1.1.164729532023883 08/10/23-10:18:46.706773 |
SID: | 2023883 |
Source Port: | 64729 |
Destination Port: | 53 |
Protocol: | UDP |
Classtype: | Potentially Bad Traffic |
Timestamp: | 192.168.11.2096.44.182.13149721802844299 08/10/23-10:19:06.719095 |
SID: | 2844299 |
Source Port: | 49721 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20162.0.239.14549723802844299 08/10/23-10:19:14.774474 |
SID: | 2844299 |
Source Port: | 49723 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2091.189.114.2749738802844299 08/10/23-10:20:04.859543 |
SID: | 2844299 |
Source Port: | 49738 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20119.18.54.5149745802844299 08/10/23-10:20:26.111767 |
SID: | 2844299 |
Source Port: | 49745 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2051.79.96.11549730802844299 08/10/23-10:19:38.625827 |
SID: | 2844299 |
Source Port: | 49730 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20119.18.54.5149742802844299 08/10/23-10:20:18.124457 |
SID: | 2844299 |
Source Port: | 49742 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2096.44.182.13149719802844299 08/10/23-10:19:01.344804 |
SID: | 2844299 |
Source Port: | 49719 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20169.150.247.3949737802844299 08/10/23-10:19:59.494375 |
SID: | 2844299 |
Source Port: | 49737 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2043.154.67.17049747802844299 08/10/23-10:20:39.075086 |
SID: | 2844299 |
Source Port: | 49747 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20104.21.62.3049726802844299 08/10/23-10:19:25.629588 |
SID: | 2844299 |
Source Port: | 49726 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20104.21.62.3049729802844299 08/10/23-10:19:33.218144 |
SID: | 2844299 |
Source Port: | 49729 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2091.189.114.2749741802844299 08/10/23-10:20:12.590080 |
SID: | 2844299 |
Source Port: | 49741 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20169.150.247.3949734802844299 08/10/23-10:19:51.900604 |
SID: | 2844299 |
Source Port: | 49734 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20162.0.239.14549725802844299 08/10/23-10:19:20.162362 |
SID: | 2844299 |
Source Port: | 49725 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20162.0.239.14549722802844299 08/10/23-10:19:12.087297 |
SID: | 2844299 |
Source Port: | 49722 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.201.1.1.162437532023883 08/10/23-10:19:38.270347 |
SID: | 2023883 |
Source Port: | 62437 |
Destination Port: | 53 |
Protocol: | UDP |
Classtype: | Potentially Bad Traffic |
Timestamp: | 192.168.11.2051.79.96.11549731802844299 08/10/23-10:19:41.533492 |
SID: | 2844299 |
Source Port: | 49731 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20107.148.17.6749717802844299 08/10/23-10:18:48.197917 |
SID: | 2844299 |
Source Port: | 49717 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2051.79.96.11549733802844299 08/10/23-10:19:46.770226 |
SID: | 2844299 |
Source Port: | 49733 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2091.189.114.2749739802844299 08/10/23-10:20:07.434864 |
SID: | 2844299 |
Source Port: | 49739 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2096.44.182.13149718802844299 08/10/23-10:18:58.663892 |
SID: | 2844299 |
Source Port: | 49718 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2043.154.67.17049746802844299 08/10/23-10:20:36.294109 |
SID: | 2844299 |
Source Port: | 49746 |
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: | Virustotal: | Perma Link | ||
Source: | ReversingLabs: |
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Source: | Code function: | 0_2_004064FD | |
Source: | Code function: | 0_2_004063BD | |
Source: | Code function: | 0_2_004029DA |
Source: | File opened: | Jump to behavior | ||
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Networking |
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