Windows
Analysis Report
Purchase Order_20240528.exe
Overview
General Information
Detection
FormBook
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus detection for URL or domain
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Yara detected AntiVM3
Yara detected FormBook
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Queues an APC in another process (thread injection)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses nslookup.exe to query domains
Allocates memory with a write watch (potentially for evading sandboxes)
Checks if the current process is being debugged
Contains functionality for execution timing, often used to detect debuggers
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to call native functions
Contains functionality to read the PEB
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
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)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
PE / OLE file has an invalid certificate
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)
Yara signature match
Classification
- System is w10x64
Purchase Order_20240528.exe (PID: 1764 cmdline:
"C:\Users\ user\Deskt op\Purchas e Order_20 240528.exe " MD5: B6422C6C56CDAB2A43415FDCCEEAF3E6) Purchase Order_20240528.exe (PID: 6424 cmdline:
"C:\Users\ user\Deskt op\Purchas e Order_20 240528.exe " MD5: B6422C6C56CDAB2A43415FDCCEEAF3E6) qFrNDyfVqdmmFLBeyXwBmuB.exe (PID: 3892 cmdline:
"C:\Progra m Files (x 86)\SLBLxr BaueDpSQjB cAhvhoNXas TGWYvVGGNt axzwFQAKDo vaY\qFrNDy fVqdmmFLBe yXwBmuB.ex e" MD5: 32B8AD6ECA9094891E792631BAEA9717) nslookup.exe (PID: 6600 cmdline:
"C:\Window s\SysWOW64 \nslookup. exe" MD5: 9D2EB13476B126CB61B12CDD03C7DCA6) qFrNDyfVqdmmFLBeyXwBmuB.exe (PID: 1364 cmdline:
"C:\Progra m Files (x 86)\SLBLxr BaueDpSQjB cAhvhoNXas TGWYvVGGNt axzwFQAKDo vaY\qFrNDy fVqdmmFLBe yXwBmuB.ex e" MD5: 32B8AD6ECA9094891E792631BAEA9717) firefox.exe (PID: 644 cmdline:
"C:\Progra m Files\Mo zilla Fire fox\Firefo x.exe" MD5: C86B1BE9ED6496FE0E0CBE73F81D8045)
- 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. |
⊘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 12 entries |
⊘No Sigma rule has matched
Timestamp: | 05/28/24-07:16:53.334171 |
SID: | 2855464 |
Source Port: | 49733 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:18:01.720040 |
SID: | 2855464 |
Source Port: | 49753 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:15:38.516275 |
SID: | 2855464 |
Source Port: | 49713 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:18:15.208740 |
SID: | 2855464 |
Source Port: | 49757 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:17:09.283748 |
SID: | 2855464 |
Source Port: | 49738 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:16:42.377017 |
SID: | 2855464 |
Source Port: | 49730 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:16:15.498664 |
SID: | 2855464 |
Source Port: | 49722 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:17:20.398275 |
SID: | 2855464 |
Source Port: | 49741 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:18:17.738015 |
SID: | 2855464 |
Source Port: | 49758 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:15:52.921989 |
SID: | 2855464 |
Source Port: | 49718 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:16:12.940995 |
SID: | 2855464 |
Source Port: | 49721 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:16:55.860764 |
SID: | 2855464 |
Source Port: | 49734 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:17:47.272667 |
SID: | 2855464 |
Source Port: | 49749 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:17:33.834488 |
SID: | 2855464 |
Source Port: | 49745 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:16:26.572363 |
SID: | 2855464 |
Source Port: | 49725 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:17:06.750149 |
SID: | 2855464 |
Source Port: | 49737 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:17:49.818347 |
SID: | 2855464 |
Source Port: | 49750 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:18:49.380784 |
SID: | 2855464 |
Source Port: | 49761 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:16:29.112208 |
SID: | 2855464 |
Source Port: | 49726 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:16:39.845789 |
SID: | 2855464 |
Source Port: | 49729 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:18:04.253452 |
SID: | 2855464 |
Source Port: | 49754 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:18:51.922417 |
SID: | 2855464 |
Source Port: | 49762 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:17:22.933853 |
SID: | 2855464 |
Source Port: | 49742 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:17:36.363867 |
SID: | 2855464 |
Source Port: | 49746 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:15:50.391688 |
SID: | 2855464 |
Source Port: | 49717 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 05/28/24-07:15:35.984016 |
SID: | 2855464 |
Source Port: | 49712 |
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: | Code function: | 5_2_02A6BD30 |
Source: | Code function: | 0_2_06D16172 | |
Source: | Code function: | 5_2_02A597F0 | |
Source: | Code function: | 5_2_02A622FB |
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Source: | Process created: | Jump to behavior |
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