MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ba41656ca5e0e243cff9f6a536c43998a9dbc492f5e813a0022e84359b2e0ef8. 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: 11


Intelligence 11 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ba41656ca5e0e243cff9f6a536c43998a9dbc492f5e813a0022e84359b2e0ef8
SHA3-384 hash: 730e69cdcaf9702e620457a1999a9f0779dd9addd93c526e6e214cc95915eb2b564fa1576de7dfeae3e47e0b7d51cbc0
SHA1 hash: 6b01e540d3757944b61baa187159a908e170d5ae
MD5 hash: 13dbc9c1c5a2811ecbee5f420c9c75b6
humanhash: black-early-mike-thirteen
File name:20210113432.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'070'592 bytes
First seen:2021-01-13 20:19:36 UTC
Last seen:2021-01-13 21:59:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:snFhpCARzgXcLcSQgjKyetszECz09YadnGPqZYigRWuyuc28RhXb:s1LzgXcg+jKnkECuHnAqq/RWuy68Rd
TLSH B2352A40BBD81700F3BD27BC697440655BF5FB95E6B8E31CF86C506A1BA2E5080BE762
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
166
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
20210113432.exe
Verdict:
Malicious activity
Analysis date:
2021-01-14 05:43:35 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/6d6b0a3b-8355-4fbf-9168-defe57ff9774

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/111866/
Detection(s):
SecuriteInfo.com.Trojan.GenericKDZ.72492.7187.18099.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
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/580617
Signature
.NET source code contains potential unpacker
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: CMSTP Execution Process Creation
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 339348 Sample: 20210113432.exe Startdate: 13/01/2021 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 7 other signatures 2->42 10 20210113432.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\20210113432.exe.log, ASCII 10->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 14 20210113432.exe 10->14         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.fordexplorerproblems.com 74.208.236.28, 49757, 80 ONEANDONE-ASBrauerstrasse48DE United States 17->30 32 exoticorganicwine.com 34.102.136.180, 49756, 49759, 80 GOOGLEUS United States 17->32 34 7 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 cmstp.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ba41656ca5e0e243cff9f6a536c43998a9dbc492f5e813a0022e84359b2e0ef8/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2021-01-13 18:56:15 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xjawk3ff4dreht7z62stnrbztcu5xres6xubhiacf2cdlgzob34a._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210113-cp3c3an6mj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.southsideflooringcreations.com/dkk/
Unpacked files
SH256 hash:
ba41656ca5e0e243cff9f6a536c43998a9dbc492f5e813a0022e84359b2e0ef8
MD5 hash:
13dbc9c1c5a2811ecbee5f420c9c75b6
SHA1 hash:
6b01e540d3757944b61baa187159a908e170d5ae
Link:
https://www.unpac.me/results/6dc2b8cd-6834-490f-9790-9e56364744fa/
SH256 hash:
296620e9308a1069ca98d27c426f25f5c1f87d9240bb371c657571034b0261b5
MD5 hash:
4cf24d41a7882216740280e3294cb853
SHA1 hash:
6bcb31d3dc0a7d71da1067a628168664202769a4
Link:
https://www.unpac.me/results/6dc2b8cd-6834-490f-9790-9e56364744fa/
SH256 hash:
9b2124d5169bb524b6a775c4cb37b787e055b23e4a1af64b01d0f25b722f9730
MD5 hash:
cc6e1dfda0b8ac62bbd1887a263ff926
SHA1 hash:
e435a2569d7e687cfb07b2e26ed98615f98ccb96
Link:
https://www.unpac.me/results/6dc2b8cd-6834-490f-9790-9e56364744fa/
SH256 hash:
fbb6ec3788418eadc89f8d45f8165650fc7ac731426ee35549495a747ded15a1
MD5 hash:
4fb16f897996e6923af585fb5a2f45be
SHA1 hash:
41a1f418c8525edbcb8e208113cb46de8a529cad
Link:
https://www.unpac.me/results/6dc2b8cd-6834-490f-9790-9e56364744fa/
SH256 hash:
ef897a9a9f0daf87183137cf36cfd3bcb36bbda74165d320668b17732e0ac61e
MD5 hash:
15554a5ed05f7ff8dfaad521ccfae743
SHA1 hash:
7d45f2d91d4eecd6a4a4afb0d0f2c2e270c6ea60
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/6dc2b8cd-6834-490f-9790-9e56364744fa/
Parent samples :
ba41656ca5e0e243cff9f6a536c43998a9dbc492f5e813a0022e84359b2e0ef8
fb1b538251b7c9a011807fee199f1446b68c40e9caed0709389eac91e311bf1e
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ba41656ca5e0e243cff9f6a536c43998a9dbc492f5e813a0022e84359b2e0ef8

File information

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

Malspam

Formbook

Executable exe ba41656ca5e0e243cff9f6a536c43998a9dbc492f5e813a0022e84359b2e0ef8

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/111866/

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