MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d3b2a4fd805fd21b0d36b9814670c372921394b1b5027e0f27aa397fa08bb58c. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d3b2a4fd805fd21b0d36b9814670c372921394b1b5027e0f27aa397fa08bb58c
SHA3-384 hash: 7aef3e3d8858803911f6833b808f6274a3c0d1d7e671ce7e028d79303b35f68cfc65b6148e180a24c3f004d3bd263410
SHA1 hash: 33ff4197d9ec1019b6487932607e266b8008452e
MD5 hash: d95167e809df34453ebab571ddf1eb3f
humanhash: cup-mars-illinois-tango
File name:Purchas.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'077'760 bytes
First seen:2022-03-23 13:25:47 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 24576:2GjF4uYqIVgL0TuQ9WzczlPGaMg8hDb7mgU+C9JrNNn:j6uA80TtWYzY3FfHUj95N
Threatray 14'444 similar samples on MalwareBazaar
TLSH T18D3523C736C88B18C4694BB5693A9D540A3B6F26BC03F75D9D41B16D1EB33C09E036AB
File icon (PE):PE icon
dhash icon 74f4888a8c8880a4 (8 x SnakeKeylogger, 2 x AgentTesla, 2 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
220
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchas.rar
Verdict:
Suspicious activity
Analysis date:
2022-03-24 04:42:53 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/fb794a9c-c552-4c01-a4e7-8cfaf4b243a5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/256648/
Detection(s):
Win.Malware.Fareit-9802638-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/963340
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Self deletion via cmd delete
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:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d3b2a4fd805fd21b0d36b9814670c372921394b1b5027e0f27aa397fa08bb58c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-03-23 11:25:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
30
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2ozkj7mal7jbwdjwxgaum4gdokjbhffrwubh4dzhvi4x7ielwwga._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2c81b04d9509cf29e05309b84972fa9bf47b34bdf64032ade464fcc55a54a1b8
Formbook
6d1ae3278059d592ae7c4426df9456553b8abfbc3bd90ce0f8d1792e94ae95c2
Formbook
8f9190278b3ec347a0b8e13522ef2d5f434f5ecbc7872aafed235330dbbedcc5
Formbook
9621e6459dc138fb11bc279b6583fc68eed0db7b284e198c74dda8385db8ce0d
Formbook
bc91c7988916b582c31a55f44cbdebcfae416c3f645bf8826485fc358e0ac0e7
Formbook
c6a3fd36f07d97fb287fbac946ae8b8d12d1fcde36fa87395de79d59f0c3fb77
Formbook
ce7e5c68cfe5d7e602c698d10280cd44280e78dfa8ba0b549b90a4ba906ba84b
Formbook
d0d6b8f342215efb1adba27088bb7f6dfe14dd3734612aecf1124b121c3a7cc6
Formbook
e4d0ebfd2e92b3848aa302ff71782e2bb7b55b1340f340c89e263e9d1a2a6987
Formbook
+ 14'434 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:d1n3 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220323-qpj12abcal/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
7b67f368c4fd94831894849ec9fa44cd97947d04ed7793bcc95786b1cd0a53b8
MD5 hash:
c377124183d9f07def0b0610f1b61af3
SHA1 hash:
948a9c900e1bf72aeea33a1b31e534863dd74c6a
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/5478642b-8585-4fc5-9d5b-d6a78a943c9d/
Parent samples :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 hash:
18311ae95c306f79864bdcb8af5256b69af98387fa855c5fefac6f9cc5320bfe
MD5 hash:
8f6ab1f6f55786e0390088f47b776e44
SHA1 hash:
eae86ef6c72aa889139b3d56d80b330277343562
Link:
https://www.unpac.me/results/5478642b-8585-4fc5-9d5b-d6a78a943c9d/
SH256 hash:
dc5c057b0ee1eb079cf189762aac69f0d86338ea18795dc4fbf7ed9b5a45c2eb
MD5 hash:
4103ed94f4747b30e166cf3c25416f47
SHA1 hash:
d553a67056e94f60d621ca42dcecd6d93f9ef1ad
Link:
https://www.unpac.me/results/5478642b-8585-4fc5-9d5b-d6a78a943c9d/
SH256 hash:
ca7da3c90dc599156bb17bf955c0911e400166856f54b920c13b07f044dd88ef
MD5 hash:
48366bf3e55122e4c4a7e2d4c80488a9
SHA1 hash:
3dcd11c35bfee1baecc6771043dae43f73ac8aca
Link:
https://www.unpac.me/results/5478642b-8585-4fc5-9d5b-d6a78a943c9d/
SH256 hash:
d3b2a4fd805fd21b0d36b9814670c372921394b1b5027e0f27aa397fa08bb58c
MD5 hash:
d95167e809df34453ebab571ddf1eb3f
SHA1 hash:
33ff4197d9ec1019b6487932607e266b8008452e
Link:
https://www.unpac.me/results/5478642b-8585-4fc5-9d5b-d6a78a943c9d/
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/d3b2a4fd805fd21b0d36b9814670c372921394b1b5027e0f27aa397fa08bb58c

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 d3b2a4fd805fd21b0d36b9814670c372921394b1b5027e0f27aa397fa08bb58c

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/256648/

Comments