MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bb6c08035fd7dc06d3ace7952af7bd640c45c548e087dba1deaa45f1861b0077. 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 4 File information Comments
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SHA256 hash: bb6c08035fd7dc06d3ace7952af7bd640c45c548e087dba1deaa45f1861b0077
SHA3-384 hash: 53ccdb616870d07ac5555b7282abc8c9b2f2f2a916f020fb31e55d59c14edec44eb2f9e4cae20bd3a01bc471b5458e27
SHA1 hash: 3245d570c89fb1e5e4ff7f216aa6cb12099726e2
MD5 hash: 5ede73c34f56df7353c2516b0b544d3d
humanhash: missouri-arkansas-tango-colorado
File name:HENTEC12834.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:542'720 bytes
First seen:2021-10-21 07:52:11 UTC
Last seen:2021-10-21 11:37:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:x6Uqd2GhNNLrM+qqpEu+VNlJ5xIjXDGwtwy/hkHa7wZjEHG85v0zLTgk46CKmqId:IUi2iN53E15iDGwtwohw5V8x0+FD6e
Threatray 10'732 similar samples on MalwareBazaar
TLSH T19DB4C086F54481F0DE2967723973CA3927933CB9A972550C2BCBBD6B3AB72614C34463
File icon (PE):PE icon
dhash icon d4c4c4d8ccd4f0c4 (63 x Formbook, 23 x AgentTesla, 8 x RemcosRAT)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
163
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/198997/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61711c619a5a1e91c5cabf58/reports/b122a28c-910b-43dd-ab02-f8794a93a131/overview
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8c2789fb-b7c7-4481-b836-c4b00071eb8c
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/874396
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 506823 Sample: HENTEC12834.exe Startdate: 21/10/2021 Architecture: WINDOWS Score: 100 31 www.xn--bl-pn3e57s.com 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 10 other signatures 2->45 11 HENTEC12834.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\HENTEC12834.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 15 HENTEC12834.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 33 allencountypallet.com 81.169.145.171, 49711, 80 STRATOSTRATOAGDE Germany 18->33 35 vizit-app.com 81.169.145.93, 49710, 80 STRATOSTRATOAGDE Germany 18->35 37 11 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 49 Performs DNS queries to domains with low reputation 18->49 22 rundll32.exe 18->22         started        signatures11 process12 signatures13 51 Self deletion via cmd delete 22->51 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bb6c08035fd7dc06d3ace7952af7bd640c45c548e087dba1deaa45f1861b0077/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2021-10-21 07:53:06 UTC
AV detection:
12 of 42 (28.57%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xnwaqa2727oanu5m46ksv555mqgelrki4cd5xio6vjc7dbq3ab3q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
5fd22c8bf1e7e06ccaa6ebc23410086fe0e3bc30b1613cd6ee734f280c0d6979
Formbook
638394ba0aa51689488ddd944d4b358f02fde988c65842110bdc089e04e9f138
Formbook
694b9ea09a47c2f24b47c60ddff0a0537828e8ba964c0ad0045b9862bce37d42
Formbook
9f59a9c7a38d8031c5b0829da6c4c10951b1de67adada4f567449d4b6ea8d83c
Formbook
c63cb761da677849b8382eb1d926569f00a04d57f2c789b63e7f2eb2e368a00c
Formbook
cce2edbec8676315b05ba2e2dda2feb9190edb5f217b9824ae58b40a770924fe
Formbook
e14df53adff2889344d4502133a00a389e06039715c26a7724ed3f046fc683a1
Formbook
fedeb19031bcc0941b0943dd3ed45ee6095b8c489c072c85e513b414abf8acf5
Formbook
+ 10'722 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:s2wt rat spyware stealer trojan
Link:
https://tria.ge/reports/211021-jqz1baaab6/
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.neumanesseriran.com/s2wt/
Unpacked files
SH256 hash:
ea35b5d62a18b2a22efc9638c6038a63604a5dde02e6ca50c0003e518c9bcb76
MD5 hash:
f10eb6c548a0f57da6eda105df44e1b2
SHA1 hash:
949b39eb9c5a6dbb441715be4152f3ea1816e702
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/559d960a-2970-4f4d-a3da-c88a6370330d/
SH256 hash:
fddf27596c43afa44ec14a34650bc7aca753b5ce6a94663161dabac6dd9d176f
MD5 hash:
56c123ea25afa5149be7175efdfffb24
SHA1 hash:
35cf039534fd59eeccf2e67ccae696baa62b34c3
Link:
https://www.unpac.me/results/559d960a-2970-4f4d-a3da-c88a6370330d/
SH256 hash:
6fee24a1398bb022d0c5b9059b9b21e7636fc3861866a583d0e49b7d0ca56d58
MD5 hash:
36e2528c3cb3ad299ea481283687cdd6
SHA1 hash:
1981340bc7be1aa8f78f942fc6f0724838e35a87
Link:
https://www.unpac.me/results/559d960a-2970-4f4d-a3da-c88a6370330d/
SH256 hash:
bb6c08035fd7dc06d3ace7952af7bd640c45c548e087dba1deaa45f1861b0077
MD5 hash:
5ede73c34f56df7353c2516b0b544d3d
SHA1 hash:
3245d570c89fb1e5e4ff7f216aa6cb12099726e2
Link:
https://www.unpac.me/results/559d960a-2970-4f4d-a3da-c88a6370330d/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/bb6c08035fd7/report/overview.html
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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
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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 bb6c08035fd7dc06d3ace7952af7bd640c45c548e087dba1deaa45f1861b0077

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/198997/

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