MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6c5a9b4eec9d4bb7e7db05662c3c0d370afd28510b3fdbe7639af75fd1e573a6. 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: 16


Intelligence 16 IOCs YARA 3 File information Comments
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SHA256 hash: 6c5a9b4eec9d4bb7e7db05662c3c0d370afd28510b3fdbe7639af75fd1e573a6
SHA3-384 hash: 8430f94bbb254694b1cc7a1ad919be4d6bff9becf99e36485dd61f05406ed97cc5ddd1f4223f35ca77270b8e171293b1
SHA1 hash: 9538a9f3740820f97f70c0d50f82dfdccc647ffc
MD5 hash: f4fdf015687ebc440f2dd03d17de1e57
humanhash: jupiter-lake-massachusetts-pizza
File name:Revised_PO3923447.pdf.exe
Download: download sample
Signature Formbook
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File size:598'016 bytes
First seen:2023-12-06 16:20:43 UTC
Last seen:2023-12-06 18:25:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:A6/QaueH5qaE+6JKaZtnBcW9FCtWDanDmCrReJzDB1iy4i:A6dqaE+6hZJtFCsanDjrRozDB0
TLSH T1C8D4232A37EB5527C7AFFCF4900972A53379EA10D1D0E2ED1C3922C81DE9B1149A4B67
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)
File icon (PE):PE icon
dhash icon 480013cccc553380 (15 x AgentTesla, 5 x SnakeKeylogger, 5 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
314
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/462903/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/65709f748b5ba47db2d4d9e8/reports/b3b94f2d-6216-40ee-8ab8-a22f4c7e77f0/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/6c5a9b4eec9d4bb7e7db05662c3c0d370afd28510b3fdbe7639af75fd1e573a6
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:
Generic Malware
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/22bb7ab2-2afc-45a7-bccc-ea347a46d598
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1354717
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1354717 Sample: Revised_PO3923447.pdf.exe Startdate: 06/12/2023 Architecture: WINDOWS Score: 100 36 www.qjgx8ol.xyz 2->36 38 www.yjajjac.top 2->38 40 10 other IPs or domains 2->40 44 Snort IDS alert for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 52 12 other signatures 2->52 11 Revised_PO3923447.pdf.exe 3 2->11         started        signatures3 50 Performs DNS queries to domains with low reputation 36->50 process4 signatures5 60 Tries to detect virtualization through RDTSC time measurements 11->60 62 Injects a PE file into a foreign processes 11->62 14 Revised_PO3923447.pdf.exe 11->14         started        process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 17 explorer.exe 40 1 14->17 injected process8 dnsIp9 30 www.almosthomeservices.com 74.220.199.6, 49719, 80 UNIFIEDLAYER-AS-1US United States 17->30 32 auophir.com 192.124.249.64, 49716, 80 SUCURI-SECUS United States 17->32 34 6 other IPs or domains 17->34 42 System process connects to network (likely due to code injection or exploit) 17->42 21 control.exe 17->21         started        24 autofmt.exe 17->24         started        signatures10 process11 signatures12 54 Modifies the context of a thread in another process (thread injection) 21->54 56 Maps a DLL or memory area into another process 21->56 58 Tries to detect virtualization through RDTSC time measurements 21->58 26 cmd.exe 1 21->26         started        process13 process14 28 conhost.exe 26->28         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6c5a9b4eec9d4bb7e7db05662c3c0d370afd28510b3fdbe7639af75fd1e573a6
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/6c5a9b4eec9d4bb7e7db05662c3c0d370afd28510b3fdbe7639af75fd1e573a6/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2023-12-06 05:06:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nrnjwtxmtvf3pz63avtcypang4fp2kcrbm75xz3dtl3v7upfoota._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:o07d rat spyware stealer trojan
Link:
https://tria.ge/reports/231206-ttmt9sed2s/
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
Unpacked files
SH256 hash:
0d01a55d950be4a12a097c6e08b78d3d659ad0cdff4ea4dcfebe6c782d45750a
MD5 hash:
df349e5e18c5c1aed3ae0a21f78174ec
SHA1 hash:
7b5a145100d9cafba003321a564456b7e6e561b6
Detections:
FormBook
Create hunting rule
win_formbook_w0
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win_formbook_auto
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win_formbook_g0
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Formbook
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Link:
https://www.unpac.me/results/ecf51665-59db-46ab-9d54-82d18e361eae/
Parent samples :
ecaa8fb67add255be2f367877538a5b2c3db6be3b3c00663b0e28569effa68b9
4a5e90afb12bf96e61a233f2824975d529c72b5ade2261f59ac8f5a0e1e242ec
6c5a9b4eec9d4bb7e7db05662c3c0d370afd28510b3fdbe7639af75fd1e573a6
SH256 hash:
b6214a7b4dcd16440cf8ad799b4d2f2386c43223cb07742e54eca6caffa7b1a1
MD5 hash:
0cdb14e7cde47f222a4fd76ae490fc8f
SHA1 hash:
8ed6271b3be834ebcfbbff68e30d872df36ddc59
Link:
https://www.unpac.me/results/ecf51665-59db-46ab-9d54-82d18e361eae/
SH256 hash:
2150e460997184f64ef50d6be40e11bc7d9e80f55634fabbfc2a2c1d2cf62f13
MD5 hash:
4cc17110d255dedecf28036d3e6a7fb2
SHA1 hash:
2b8cbc25811e6e470332fd9db8d6754aeec6373b
Link:
https://www.unpac.me/results/ecf51665-59db-46ab-9d54-82d18e361eae/
SH256 hash:
0ab9f51e0c848f0419efd1ee189911dd3763c2a7e159febcc7327ff6b35b1de2
MD5 hash:
c755b9a8ecfaf3da6896055db7b8c477
SHA1 hash:
12db6bf7c27193e2398ae5aac38cd38fdbe08a1d
Link:
https://www.unpac.me/results/ecf51665-59db-46ab-9d54-82d18e361eae/
SH256 hash:
6c5a9b4eec9d4bb7e7db05662c3c0d370afd28510b3fdbe7639af75fd1e573a6
MD5 hash:
f4fdf015687ebc440f2dd03d17de1e57
SHA1 hash:
9538a9f3740820f97f70c0d50f82dfdccc647ffc
Link:
https://www.unpac.me/results/ecf51665-59db-46ab-9d54-82d18e361eae/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6c5a9b4eec9d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/6c5a9b4eec9d4bb7e7db05662c3c0d370afd28510b3fdbe7639af75fd1e573a6

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:NET
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Author:malware-lu
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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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/462903/

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