MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2c93f13378494ff49e5b0d019538efd6c35d3c745bbcf9fe6e28688133d3f76f. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 16


Intelligence 16 IOCs YARA 2 File information Comments

SHA256 hash: 2c93f13378494ff49e5b0d019538efd6c35d3c745bbcf9fe6e28688133d3f76f
SHA3-384 hash: 3271873fc78f5348295a0be699de2fa2c37f7c890d33f2d63b50068ccd483127511391782c5113fcbbe5b1135fcb0217
SHA1 hash: 4902818f19221f06f69561a562661ba0d7682d1d
MD5 hash: cead3235d3f089ad9c3f8de504f2ec6e
humanhash: winter-high-early-sweet
File name:PO#CR21-1178321-pdf-.exe
Download: download sample
Signature Formbook
File size:859'136 bytes
First seen:2022-11-04 13:09:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:lyr4Vfs2sFLTAehm8buS89W4afgHPdvdx5J8vtCpT7ByFiTBkhxU+d:T8TAqbD4mgH9dV8vST7ByFY+
TLSH T1DD05E00F8AE6860ED56D32B855F0EBF79799DC00F84BC75B16C56E4FB8072208251BDA
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13097/50/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
178
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
PO#CR21-1178321-pdf-.exe
Verdict:
Malicious activity
Analysis date:
2022-11-04 13:10:36 UTC
Tags:
formbook trojan stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 738057 Sample: PO#CR21-1178321-pdf-.exe Startdate: 04/11/2022 Architecture: WINDOWS Score: 100 33 www.definitelynotacci.dental 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 8 other signatures 2->41 11 PO#CR21-1178321-pdf-.exe 4 2->11         started        signatures3 process4 file5 31 C:\Users\...\PO#CR21-1178321-pdf-.exe.log, ASCII 11->31 dropped 49 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->49 51 Adds a directory exclusion to Windows Defender 11->51 53 Tries to detect virtualization through RDTSC time measurements 11->53 55 Injects a PE file into a foreign processes 11->55 15 PO#CR21-1178321-pdf-.exe 11->15         started        18 powershell.exe 19 11->18         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 20 explorer.exe 15->20 injected 22 conhost.exe 18->22         started        process9 process10 24 raserver.exe 20->24         started        signatures11 43 Modifies the context of a thread in another process (thread injection) 24->43 45 Maps a DLL or memory area into another process 24->45 47 Tries to detect virtualization through RDTSC time measurements 24->47 27 cmd.exe 1 24->27         started        process12 process13 29 conhost.exe 27->29         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-11-04 03:23:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
21 of 40 (52.50%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:a20e evasion rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Checks computer location settings
Deletes itself
Looks for VMWare Tools registry key
Formbook payload
Looks for VirtualBox Guest Additions in registry
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
4c20cfe52fe950db870b59945c217881f46859b7e01c867502dc7bcaddf2fc5c
MD5 hash:
44b3c75f8329fa3a1ea95232bd76fc71
SHA1 hash:
f0d13a579b57b1bb8dca2246a8627ce5ae664739
SH256 hash:
bdb2c74bc955cb06710cdac0c1a8fa1fa31fec49c1d6c0582ddbbd2438791b74
MD5 hash:
b14e18030e56f4387f022cc4c8fec72d
SHA1 hash:
b631440e3a72a279a20d9de4d0b9a290ec72058c
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
SH256 hash:
8354a7ad0499febdd288542828ad0355dcb7054c0c518266208e571c5122b0c6
MD5 hash:
6bfc7ce9ec7891d9d8494454332099b5
SHA1 hash:
34fc8cebba035e2cc6d27d636f9655949080bf8e
SH256 hash:
2c93f13378494ff49e5b0d019538efd6c35d3c745bbcf9fe6e28688133d3f76f
MD5 hash:
cead3235d3f089ad9c3f8de504f2ec6e
SHA1 hash:
4902818f19221f06f69561a562661ba0d7682d1d
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Other

Comments