MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1837977343db27c358f1e1591e4aac16bb0cbd920ccb5663c2d4c7cf1baa1067. 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: 17


Intelligence 17 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1837977343db27c358f1e1591e4aac16bb0cbd920ccb5663c2d4c7cf1baa1067
SHA3-384 hash: cbd5e7fc790dd9960244418e3c58f6b603213f3903729bf2c3ba6d56f75fe73868aa7409426b6972541afbc7ba535e64
SHA1 hash: 049548115dce7b49b97865f550b559041b03a76f
MD5 hash: 86f23924ae2df7830940e8f8b51e602d
humanhash: quiet-zulu-jig-table
File name:hkcmd.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:561'664 bytes
First seen:2023-09-14 17:02:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:Tv2Aj8FwLm/VMmXmiyb8kIVz6pHj/1tasyvucZptQ5Ic:TuAj8F6QjmisIVepZERvuSptQO
Threatray 1'919 similar samples on MalwareBazaar
TLSH T1ADC412A722A45B07D4FF83F69576260953F1D8799828F20C4FCAA4FE2B36F401548B67
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
280
Origin country :
CA CA
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
hkcmd.exe
Verdict:
Malicious activity
Analysis date:
2023-09-14 17:05:10 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/ec4d1567-0cb5-4343-aa6e-b070b769743c

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/448692/
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.26539.10712.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65033c8c9bae8a3785575f74/reports/b8e3eba9-ef7a-4fbc-9317-af54e2e348c6/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/1837977343db27c358f1e1591e4aac16bb0cbd920ccb5663c2d4c7cf1baa1067
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dfc3d13f-7c37-4629-a8f2-d587bd7036a0
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1308190
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd or bat file
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1308190 Sample: hkcmd.exe Startdate: 14/09/2023 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for URL or domain 2->39 41 8 other signatures 2->41 10 hkcmd.exe 3 2->10         started        process3 signatures4 51 Tries to detect virtualization through RDTSC time measurements 10->51 53 Injects a PE file into a foreign processes 10->53 13 hkcmd.exe 10->13         started        process5 signatures6 55 Modifies the context of a thread in another process (thread injection) 13->55 57 Maps a DLL or memory area into another process 13->57 59 Sample uses process hollowing technique 13->59 61 Queues an APC in another process (thread injection) 13->61 16 explorer.exe 3 1 13->16 injected process7 dnsIp8 27 www.kwamitikki.com 195.216.243.33, 49714, 80 DDOS-GUARDRU United Kingdom 16->27 29 www.motorcycleglassesshop.com 104.21.10.223, 49718, 80 CLOUDFLARENETUS United States 16->29 31 17 other IPs or domains 16->31 33 System process connects to network (likely due to code injection or exploit) 16->33 20 cmmon32.exe 16->20         started        signatures9 process10 signatures11 43 Self deletion via cmd or bat file 20->43 45 Modifies the context of a thread in another process (thread injection) 20->45 47 Maps a DLL or memory area into another process 20->47 49 Tries to detect virtualization through RDTSC time measurements 20->49 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1837977343db27c358f1e1591e4aac16bb0cbd920ccb5663c2d4c7cf1baa1067/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-09-14 15:27:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
25 of 37 (67.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=da3zo42d3mt4gwhr4fmr4svmc25qzpmsbtfvmy6c2td46g5kcbtq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
155240d8bf35cc3a5c6b2703440162da4cdeca7d3faab01e656a4b401e2eb15d
Formbook
1a4a833905ed2b06f990054eee77c7f92d536d52797c6a18de6d1358e25e8e03
Formbook
21f03aa3cb1ce12b742fc78552681e20099f77f1aa347516a253e383eb5f3f11
Formbook
3657bbc56c6f5a8bc8326ee2eb13f384bd89697fa29175436a28601b47f945ce
Formbook
3adb8aeb7691dc238ebd6c61ae7a0f7bdac303f547d02109d5d23bf096403733
Formbook
ab81345f141fa4d777d142a4f8367c53e9840897bc2b4c3299a4f6696a46296d
Formbook
b2d76e91d736201b7e8fb9780594693cfc3106285a4886e9b40007fdd7e56359
Formbook
d1fb7e74ddc8117a5eb3c57b607ac4eee92c9d67a8138fcb12c4d4995ef8109a
Formbook
e3643d141c0e87b3304f3b015f1e8dbbbe273e9a8bb93906991fe61a3073f891
Formbook
+ 1'909 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sy22 rat spyware stealer trojan
Link:
https://tria.ge/reports/230914-vj4kpsgb52/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
24fe9517e8701825def1d4094e92edbf9eaa76f22ef708f6e74b081ad1483f9a
MD5 hash:
fc5df6126d3f7c266dfa3ae743a9848e
SHA1 hash:
08b1e6c48eb2149ffb272ed476314135dca8ff09
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/b3175437-ea64-4202-acb8-66392b417456/
Parent samples :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 hash:
658ba6aef2b52911c0a79df3300b3a6b34feab1b1f77c6b21630fd827c150e8e
MD5 hash:
a79544f4019313ebf6e7bf4eb898c7cf
SHA1 hash:
ba7437709e2123cb70bc292280e8a0b4e5f11c0a
Link:
https://www.unpac.me/results/b3175437-ea64-4202-acb8-66392b417456/
SH256 hash:
0cc2d545cdbc9aca7ac5732fc2e1858bae1b8c575e67f0b4b8077610c5597806
MD5 hash:
604ba9fe5293c6b09155e9593e5fe8b4
SHA1 hash:
c9ca531c5c50091dcdeabea6af26643e897fe3f8
Link:
https://www.unpac.me/results/b3175437-ea64-4202-acb8-66392b417456/
SH256 hash:
275d623ae9e8d78c5a5e7f828e147f6e59e8fb6cca24b903fc9d96ebc7c23e23
MD5 hash:
cd6398237aee89b0867e8b0f97d6de93
SHA1 hash:
c2ab8e1209eb901b865db5c30889b4165a020f69
Link:
https://www.unpac.me/results/b3175437-ea64-4202-acb8-66392b417456/
SH256 hash:
0630b864e828fff2d66f33ab7d00fad231df4c00fc0bbad313ee0d12ca503198
MD5 hash:
f559a9abbd849eb977d262d597d6e4fd
SHA1 hash:
0a8769b40b026852690c89b913c2812817ef43c8
Link:
https://www.unpac.me/results/b3175437-ea64-4202-acb8-66392b417456/
SH256 hash:
1837977343db27c358f1e1591e4aac16bb0cbd920ccb5663c2d4c7cf1baa1067
MD5 hash:
86f23924ae2df7830940e8f8b51e602d
SHA1 hash:
049548115dce7b49b97865f550b559041b03a76f
Link:
https://www.unpac.me/results/b3175437-ea64-4202-acb8-66392b417456/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1837977343db/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1837977343db27c358f1e1591e4aac16bb0cbd920ccb5663c2d4c7cf1baa1067

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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.

Cape
Cape
https://www.capesandbox.com/analysis/448692/

Comments