MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b94f5b293f83458293e899d5a76ca936cc4ea5d79913e3792cc25f08fda1a147. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments

SHA256 hash: b94f5b293f83458293e899d5a76ca936cc4ea5d79913e3792cc25f08fda1a147
SHA3-384 hash: 6cbbe2e3a7baca21c6563b33c67073828082e5885253ddb1ff580eba6c7ae85c9095803504103baf965b371421b48857
SHA1 hash: 10fe623ccd6b14cc30d1cd3ef191a08cabfa2ae2
MD5 hash: bbcc7ec5a4f78cad98c07a3bd3eecfb9
humanhash: zulu-india-timing-alaska
File name:Payment_swift advice.exe
Download: download sample
Signature Formbook
File size:611'328 bytes
First seen:2021-10-29 20:16:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:yBzapqJFTPm2GtTx50SIHsbetWnwDpO3xWCit7HSe67:y+qYtn0SWqPnwDp0WB79g
Threatray 11'054 similar samples on MalwareBazaar
TLSH T16CD4C03212A29E89DF7B1FB488E169D00EE57CD75B3ED60BEDC5C46A21F2520CD12B61
File icon (PE):PE icon
dhash icon ee5636aeea35a5e9 (11 x Formbook, 7 x AgentTesla, 3 x AsyncRAT)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
205
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment_swift advice.exe
Verdict:
Malicious activity
Analysis date:
2021-10-29 21:08:16 UTC
Tags:
n/a

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
Unauthorized injection to a recently created process
Launching the process to change network settings
Launching cmd.exe command interpreter
Launching the default Windows debugger (dwwin.exe)
Possible injection to a system process
Unauthorized injection to a system process
Deleting of the original file
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
C2 URLs / IPs found in malware configuration
Found 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)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 512028 Sample: Payment_swift advice.exe Startdate: 29/10/2021 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Yara detected FormBook 2->40 42 6 other signatures 2->42 10 Payment_swift advice.exe 3 2->10         started        process3 file4 28 C:\Users\...\Payment_swift advice.exe.log, ASCII 10->28 dropped 56 Injects a PE file into a foreign processes 10->56 14 Payment_swift advice.exe 10->14         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.testcarona.com 192.185.0.218, 49817, 80 UNIFIEDLAYER-AS-1US United States 17->30 32 shops.myshopify.com 23.227.38.74, 49816, 80 CLOUDFLARENETUS Canada 17->32 34 4 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 46 Performs DNS queries to domains with low reputation 17->46 21 cmmon32.exe 17->21         started        signatures10 process11 signatures12 48 Self deletion via cmd delete 21->48 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
Win32.Trojan.Pwsx
Status:
Malicious
First seen:
2021-10-29 20:14:08 UTC
AV detection:
8 of 44 (18.18%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:snr6 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
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.reynbetgirisi.com/snr6/
Unpacked files
SH256 hash:
a24b017645ad75f78552719251c33471c0a92f3cc19578db10b0ede79fb85556
MD5 hash:
ed4b0496fe05020acdf441fbaa04c7ae
SHA1 hash:
84ab04cd144a22b7f8e9e8d1a1c32d412857dc94
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
cba52a2912b5b8af621229ffcbac5e6f4b280db4ddfdc8eb4971840998a3145d
MD5 hash:
bc9bef93bd635bca2654efbb7378509f
SHA1 hash:
cb679d9a5a9f703d9d6943859da0a8759f873eaa
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
SH256 hash:
b94f5b293f83458293e899d5a76ca936cc4ea5d79913e3792cc25f08fda1a147
MD5 hash:
bbcc7ec5a4f78cad98c07a3bd3eecfb9
SHA1 hash:
10fe623ccd6b14cc30d1cd3ef191a08cabfa2ae2
Malware family:
FormBook
Verdict:
Malicious
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: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.

Malspam

Formbook

Executable exe b94f5b293f83458293e899d5a76ca936cc4ea5d79913e3792cc25f08fda1a147

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

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