MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 317af501cb3f40775e821990fbbb2018ca7b652cd7c2cb2c3db10a5020f6e568. 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: 317af501cb3f40775e821990fbbb2018ca7b652cd7c2cb2c3db10a5020f6e568
SHA3-384 hash: a2a12c07767dc241675c8d17b34fd0d1aa72e860d6f4090eaf8089a7f36dc88e9e67359b03ac14720f4fcdca588010f6
SHA1 hash: 38eefc0b8c50f15974f7331055fdc8bf7c9d8132
MD5 hash: 4ed1a996aa94df00bc0c7ffb57d04519
humanhash: london-crazy-artist-mississippi
File name:PO.209222.pdf.exe
Download: download sample
Signature Formbook
File size:869'888 bytes
First seen:2022-09-20 10:06:20 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:wl4CcshKQIi2cSggx1AdIfuyO/3ZcqMmi36:wlPcsP2bgIrju3G9
TLSH T17505BF54122DCA06C879AA70CC93E2701BE75DD1436EC27B4EDABCBBB136358E993351
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 7eeceeccd6c2f2f2 (14 x Formbook, 9 x AgentTesla, 8 x RemcosRAT)
Reporter JAMESWT_WT
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
261
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
PO.209222.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-09-20 10:07:08 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
Creating a window
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Result
Verdict:
UNKNOWN
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
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
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
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 signatures2 2 Behavior Graph ID: 706125 Sample: PO.209222.pdf.exe Startdate: 20/09/2022 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for URL or domain 2->40 42 8 other signatures 2->42 10 PO.209222.pdf.exe 3 2->10         started        process3 file4 28 C:\Users\user\...\PO.209222.pdf.exe.log, ASCII 10->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 54 Injects a PE file into a foreign processes 10->54 14 PO.209222.pdf.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 3 14->17 injected process8 dnsIp9 30 cdn-aztynut5pu.16a.pw 20.89.83.186, 49741, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 17->30 32 td-ccm-168-233.wixdns.net 34.117.168.233, 49743, 80 GOOGLE-AS-APGoogleAsiaPacificPteLtdSG United States 17->32 34 7 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 rundll32.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-09-20 10:07:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:v18s rat spyware stealer trojan
Behaviour
Gathers network information
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
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
17fb99dbb8da31d2b98e8833e0c182092415013a91663100a6b7b0cfae482fcc
MD5 hash:
8d76e04f714ef41006ed41f1bf821b5b
SHA1 hash:
b412497a3709bbc0a65d697769b6fad0d010a0e6
SH256 hash:
9160dfb549dd60328b53c22212385c15542d4e88dfe7c2b9af1d318911e6e4c5
MD5 hash:
0845a88004639c159ab30b7a58b60e53
SHA1 hash:
6a2425b3d18885daec9d276fe83c43a99e2cbfdd
SH256 hash:
44c50087cbd9a86677ff5b898c1ad52abf5f25297179a174edcc8b81dec967fc
MD5 hash:
d012ba9057bf67c7f29871326f2af919
SHA1 hash:
1d5b8b512b37f0e1900496b578117082929654c7
SH256 hash:
e20ec8f3c957bcb6a194ef688bae8af2015cfffb20e7baf8b2114d7b70ade4ee
MD5 hash:
35cb29046968faca7f3f3b4463449b6c
SHA1 hash:
088c8c30ec1bece0a4b5bbfe3982b073f8b95598
SH256 hash:
317af501cb3f40775e821990fbbb2018ca7b652cd7c2cb2c3db10a5020f6e568
MD5 hash:
4ed1a996aa94df00bc0c7ffb57d04519
SHA1 hash:
38eefc0b8c50f15974f7331055fdc8bf7c9d8132
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.

Comments