MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2f769789848c3e7e7492ad889d72f0087633418aa8368fcbfa63bf2dc31bfd1a. 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: 10


Intelligence 10 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2f769789848c3e7e7492ad889d72f0087633418aa8368fcbfa63bf2dc31bfd1a
SHA3-384 hash: e199a7863fcb3fca69ae3dbfb5a3237c1157bef2a2a26fd7f28c98583fe86c1a87226b01b801712fcb24f4ad2f867ac0
SHA1 hash: f776923488d99b5bb6c9ba473f00475e84934d0b
MD5 hash: f5bbbcb1e8ab3c4aaff2c85992ba5d1b
humanhash: avocado-steak-glucose-don
File name:TMB-CI2006-003 MB-CI2009-003.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:230'400 bytes
First seen:2022-03-22 05:26:47 UTC
Last seen:2022-03-29 13:23:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:FbV7uvfL1Qdtk5KGzBivpf0AdlLCv8UEKhwaqKnoVEfr:FbK1QdtzV0qGqKoVK
Threatray 14'393 similar samples on MalwareBazaar
TLSH T11534DA07B94485D8CE7945FEB1078190B7C9DCBED288B60CBBC973A34EE16A11D26B17
File icon (PE):PE icon
dhash icon f2b29ebab69efe6e (3 x AgentTesla, 2 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
258
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/254003/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
DNS request
Sending a custom TCP request
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62395e2adfdfa8501ccad6ce/reports/863760bc-04b2-47a7-92af-ebe22fbc0d9e/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:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/72bde1e6-26c3-4c74-aea0-2e426c2d5d60
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/961390
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Detected FormBook malware
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ping.exe to check the status of other devices and networks
Yara detected Costura Assembly Loader
Yara detected FormBook
Yara detected MSILDownloaderGeneric
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 593869 Sample: TMB-CI2006-003 MB-CI2009-003.exe Startdate: 22/03/2022 Architecture: WINDOWS Score: 100 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->58 60 11 other signatures 2->60 10 TMB-CI2006-003 MB-CI2009-003.exe 15 4 2->10         started        process3 dnsIp4 52 cdn.discordapp.com 162.159.130.233, 443, 49765 CLOUDFLARENETUS United States 10->52 48 C:\...\TMB-CI2006-003 MB-CI2009-003.exe.log, ASCII 10->48 dropped 72 Injects a PE file into a foreign processes 10->72 15 TMB-CI2006-003 MB-CI2009-003.exe 10->15         started        18 cmd.exe 1 10->18         started        20 cmd.exe 1 10->20         started        file5 signatures6 process7 signatures8 74 Modifies the context of a thread in another process (thread injection) 15->74 76 Maps a DLL or memory area into another process 15->76 78 Sample uses process hollowing technique 15->78 80 Queues an APC in another process (thread injection) 15->80 22 explorer.exe 15->22 injected 82 Uses ping.exe to check the status of other devices and networks 18->82 24 PING.EXE 1 18->24         started        27 conhost.exe 18->27         started        29 timeout.exe 1 18->29         started        31 conhost.exe 20->31         started        33 timeout.exe 1 20->33         started        process9 dnsIp10 35 svchost.exe 18 22->35         started        50 google.com 172.217.168.14 GOOGLEUS United States 24->50 process11 file12 44 C:\Users\user\AppData\...\72Plogrv.ini, data 35->44 dropped 46 C:\Users\user\AppData\...\72Plogri.ini, data 35->46 dropped 62 Detected FormBook malware 35->62 64 Tries to steal Mail credentials (via file / registry access) 35->64 66 Tries to harvest and steal browser information (history, passwords, etc) 35->66 68 3 other signatures 35->68 39 cmd.exe 2 35->39         started        signatures13 process14 signatures15 70 Tries to harvest and steal browser information (history, passwords, etc) 39->70 42 conhost.exe 39->42         started        process16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2f769789848c3e7e7492ad889d72f0087633418aa8368fcbfa63bf2dc31bfd1a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-03-22 05:27:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
29
AV detection:
18 of 25 (72.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=f53jpcmerq7h45esvwej24xqbb3dgqmkva3i7s72mo7s3qy37una._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0ba2f6257fb96db81026615bb726f0ede3ea3263f2f79989cbab3f7e3cff97a1
Formbook
4bc96a8bb1739c227e539a7aa4156cb6c1023a254e2660135351edbe9a7db8e2
Formbook
8d08a6736ce2ad51b87e1f3e9577a53abd8ca055fb1d7027b97250cecabee199
Formbook
909570efc48341a6ae00ae8dcbb8d751f912569a4756f7526bc7d0cf1cda81ed
Formbook
9621e6459dc138fb11bc279b6583fc68eed0db7b284e198c74dda8385db8ce0d
Formbook
9a0379b9363f704c49db190841ceb559ebed609d90f795df77ccf3b23765fa5d
Formbook
dae8588b604d0728a1a1ecc77096197a34ed1b22ae7de69a53f39b59e6574ffd
Formbook
e812adcd8f8470a1be64d92dafaebf717db1c45d58fe04a9160d88a468cf7e3c
Formbook
f61f02c5be2ef5988f474ffc148b099942ab8582cd4aac8b3c991436f6230592
Formbook
fa4fe52b60d9da8ae735fe5ff04114abd194754fcd4ca94c0558ca7f6a3b3945
Formbook
+ 14'383 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:b11y rat spyware stealer trojan
Link:
https://tria.ge/reports/220322-f5fcnseeb2/
Behaviour
Delays execution with timeout.exe
Modifies Internet Explorer settings
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Reads user/profile data of web browsers
Formbook Payload
Formbook
Unpacked files
SH256 hash:
2f769789848c3e7e7492ad889d72f0087633418aa8368fcbfa63bf2dc31bfd1a
MD5 hash:
f5bbbcb1e8ab3c4aaff2c85992ba5d1b
SHA1 hash:
f776923488d99b5bb6c9ba473f00475e84934d0b
Link:
https://www.unpac.me/results/19b17a8e-b984-4015-8358-7c7ec64bded0/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/2f769789848c3e7e7492ad889d72f0087633418aa8368fcbfa63bf2dc31bfd1a

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:dsc
Create hunting rule
Author:Aaron DeVera
Description:Discord domains
Rule name:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information

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

Malspam

Formbook

Executable exe 2f769789848c3e7e7492ad889d72f0087633418aa8368fcbfa63bf2dc31bfd1a

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/254003/

Comments