MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31fc37610e21378a4956dfec3e07d7d9fff883813caf75f1bd718ed8bbd839e6. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 31fc37610e21378a4956dfec3e07d7d9fff883813caf75f1bd718ed8bbd839e6
SHA3-384 hash: 5a0020f0ee04785d6072a2e03e172833cf6a74c0253422c9ca8ea8148733b77bbf4aff6273e9b06339c1c360125e4581
SHA1 hash: e49a6a8f72ea3eeef9150eeb17ae8a859448e09e
MD5 hash: 0d6027c2f057c0ebfde34eff866144ce
humanhash: arkansas-bulldog-batman-chicken
File name:Purchase Order.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:992'256 bytes
First seen:2022-09-12 16:27:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:RRQHFHAnWep5UOcaBy5xCSq85yoZKQgTL:RRQtAnWecVx3qw9ZdgTL
TLSH T163252C0731C549A5C07250BC24CCC5B74BAA9E45E63BC945BFC9BDAFF5B2F2846D22A0
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 71d4f0f0f0f0d0f2 (11 x Formbook, 6 x AgentTesla, 5 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
382
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Purchase Order.exe
Verdict:
Malicious activity
Analysis date:
2022-09-12 16:28:54 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/ca0be6e3-94d7-4205-b1b8-c08783e0ce00

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/309515/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.42577.UNOFFICIAL
Create hunting rule

Sanesecurity.Rogue.0hr.20220912-1336.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a file
Searching for synchronization primitives
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/631f5e6ed94ccae41091424f/reports/01b8fb43-8a82-4150-b1b8-4d935258a0d9/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/041a8bf0-e113-4009-852a-618d54f99e17
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1068965
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.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
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 701497 Sample: Purchase Order.exe Startdate: 12/09/2022 Architecture: WINDOWS Score: 100 31 www.mogdento.com 2->31 33 mogdento.com 2->33 39 Multi AV Scanner detection for domain / URL 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 45 9 other signatures 2->45 9 Purchase Order.exe 3 2->9         started        signatures3 process4 file5 23 C:\Users\user\...\Purchase Order.exe.log, ASCII 9->23 dropped 55 Writes to foreign memory regions 9->55 57 Injects a PE file into a foreign processes 9->57 13 RegSvcs.exe 9->13         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 13->59 61 Maps a DLL or memory area into another process 13->61 63 Sample uses process hollowing technique 13->63 65 Queues an APC in another process (thread injection) 13->65 16 explorer.exe 13->16 injected process9 dnsIp10 25 kinemartigues.com 51.159.175.169, 49700, 80 OnlineSASFR France 16->25 27 www.epic45.co.uk 103.67.235.120, 49701, 80 DREAMSCAPE-AS-APDreamscapeNetworksLimitedAU Philippines 16->27 29 5 other IPs or domains 16->29 35 System process connects to network (likely due to code injection or exploit) 16->35 37 Performs DNS queries to domains with low reputation 16->37 20 wlanext.exe 13 16->20         started        signatures11 process12 signatures13 47 Tries to steal Mail credentials (via file / registry access) 20->47 49 Tries to harvest and steal browser information (history, passwords, etc) 20->49 51 Modifies the context of a thread in another process (thread injection) 20->51 53 Maps a DLL or memory area into another process 20->53
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/31fc37610e21378a4956dfec3e07d7d9fff883813caf75f1bd718ed8bbd839e6/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-09-12 08:43:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gh6doyioee3yuskw37wd4b6x3h77ra4bhsxxl4n5oghnro6yhhta._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:bwe0 rat spyware stealer trojan
Link:
https://tria.ge/reports/220912-tym1tsdfd4/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
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
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d9176304-9dc7-48d1-a557-1caea418b871
Unpacked files
SH256 hash:
c60e7031a42930f55fb75595dfdd24a1e5acd099a9dd2f79ec8c9ddc25268239
MD5 hash:
df9967a6bb9f130f78d196a0ffdd2ee0
SHA1 hash:
1dd413bcaac09ac74605f745ae1bb853605220b8
Detections:
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/1831de66-2353-4412-8e03-5f3b6305432c/
Parent samples :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 hash:
8b533ffaed24e0351e489b14aaac6960b731db189ce7ed0c0c02d4a546af8e63
MD5 hash:
dbc7be56e6e32349315170599c8b333f
SHA1 hash:
d8e5840e3574b87d435e55a65ac648e040871aee
Link:
https://www.unpac.me/results/1831de66-2353-4412-8e03-5f3b6305432c/
SH256 hash:
934c55ffd84c32a323c90ea94ef8d1ccd70484099a175f83d7e2bd000013d240
MD5 hash:
a742e5c477cc6a855971a2b3a1ed766a
SHA1 hash:
bb4d179bfa4f6fdd8e6842769871c4862cc79dfe
Link:
https://www.unpac.me/results/1831de66-2353-4412-8e03-5f3b6305432c/
SH256 hash:
6c80aa9135477d30eab1f309b499e25c74757083c13467c9b1e3c699e2863ade
MD5 hash:
2b2b7965c2e3b35b7b4f55a713c92624
SHA1 hash:
82240e0332afd9374379427e9238885ff3ce4df6
Link:
https://www.unpac.me/results/1831de66-2353-4412-8e03-5f3b6305432c/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/1831de66-2353-4412-8e03-5f3b6305432c/
SH256 hash:
31fc37610e21378a4956dfec3e07d7d9fff883813caf75f1bd718ed8bbd839e6
MD5 hash:
0d6027c2f057c0ebfde34eff866144ce
SHA1 hash:
e49a6a8f72ea3eeef9150eeb17ae8a859448e09e
Link:
https://www.unpac.me/results/1831de66-2353-4412-8e03-5f3b6305432c/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/31fc37610e21/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/31fc37610e21378a4956dfec3e07d7d9fff883813caf75f1bd718ed8bbd839e6

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe 31fc37610e21378a4956dfec3e07d7d9fff883813caf75f1bd718ed8bbd839e6

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/309515/

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