MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55028ddc6704717154ae4a43603da57d1099caee821c64c92722519f00c88e6d. 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 3 File information Comments
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SHA256 hash: 55028ddc6704717154ae4a43603da57d1099caee821c64c92722519f00c88e6d
SHA3-384 hash: 42c68ef49b9db0b724254b0db0437ce87b76837b1136dad0b88032b85f5b91debaa8fbc18336709bc7978bd3eba4715b
SHA1 hash: 82018de19c15987527ed0b063393863561340ca5
MD5 hash: 4d50ca07e1bc5f7ea745cc7e01f8e9ba
humanhash: ink-lamp-north-timing
File name:4d50ca07e1bc5f7ea745cc7e01f8e9ba.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'321'984 bytes
First seen:2021-12-13 17:13:11 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 24576:9ZSidKFBjDAhQAGHf+LYm6Pj6W5nwLfd9bbv0mOv16m0pNqAV:Ddd0BNAG/+LBmGYnwDXPMm+1cpNq
TLSH T16A5523023AA48A22C66C5B7DC9AF512003BC6A4A3EF1FE9D7CE773C675263D145146E3
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
152
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4d50ca07e1bc5f7ea745cc7e01f8e9ba.exe
Verdict:
Malicious activity
Analysis date:
2021-12-13 17:21:29 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4b54dda5-3fa1-45cd-8421-3bcb41ae1a7d

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/213643/
Detection(s):
PUA.Win.Packer.Medvedev-6482674-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61b77f5ed949b30459f42275/reports/cf92c7d7-5fcb-43f0-acb9-0cda7d108f6f/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/a4135dfb-ab07-4ffe-9f59-267a39a72efc
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/906480
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 signatures2 2 Behavior Graph ID: 538958 Sample: ih1naxWHqn.exe Startdate: 13/12/2021 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Multi AV Scanner detection for domain / URL 2->40 42 Found malware configuration 2->42 44 8 other signatures 2->44 10 ih1naxWHqn.exe 3 2->10         started        process3 file4 34 C:\Users\user\AppData\...\ih1naxWHqn.exe.log, ASCII 10->34 dropped 56 Tries to detect virtualization through RDTSC time measurements 10->56 58 Injects a PE file into a foreign processes 10->58 14 ih1naxWHqn.exe 10->14         started        17 ih1naxWHqn.exe 10->17         started        19 ih1naxWHqn.exe 10->19         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 21 explorer.exe 14->21 injected process8 dnsIp9 36 www.atozfinance.store 35.209.12.34, 49822, 80 GOOGLE-2US United States 21->36 46 System process connects to network (likely due to code injection or exploit) 21->46 25 help.exe 21->25         started        28 autoconv.exe 21->28         started        signatures10 process11 signatures12 48 Self deletion via cmd delete 25->48 50 Modifies the context of a thread in another process (thread injection) 25->50 52 Maps a DLL or memory area into another process 25->52 54 Tries to detect virtualization through RDTSC time measurements 25->54 30 cmd.exe 1 25->30         started        process13 process14 32 conhost.exe 30->32         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/55028ddc6704717154ae4a43603da57d1099caee821c64c92722519f00c88e6d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-12-13 17:14:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:c3f6 rat spyware stealer trojan
Link:
https://tria.ge/reports/211213-vryz7adhg3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.www-supportfindmy.com/c3f6/
Unpacked files
SH256 hash:
9e7d7705c5be32083f8c108f7605ef81470ca87679e8b351168702632e3b944e
MD5 hash:
ab6ae737146ae3855e1444529feb4b64
SHA1 hash:
43df553db8d0f3bd4b2ee9e6b7bfe348ebc2aad7
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/6858e1e1-c353-44d5-b93f-28228a833b02/
Parent samples :
55028ddc6704717154ae4a43603da57d1099caee821c64c92722519f00c88e6d
c5c6248caa8d0e035434be7fefacaacdc490b1f763917683db5270cfe7d289aa
58d05ac8e9716f4322f5d39d676a3415c7f499e99c8fa5d920bbbecdb4a616b7
754d0c2b1277e1c89a1220f33cdb795900b882bfb5b0fc003b1880e55c4fbec1
633ad8beecf7e68a344492aa6722033b10aeb60cdf3ddeb2bc67dfa42efb16af
SH256 hash:
f8ee3ec61da05401295cfc650a604dc644a16a8d7afc9f090cd9f7a0d9300317
MD5 hash:
7e9f1e09d0aa634d949c26737c26ff3c
SHA1 hash:
cb6b35efc98d0656148907ce56268a964556664d
Link:
https://www.unpac.me/results/6858e1e1-c353-44d5-b93f-28228a833b02/
SH256 hash:
cc855bfa7f88ac83ba8ddcd147555e895fb1468f1236c4b5df9fb78465e4821b
MD5 hash:
e1f60a2544226cbade847479792d0386
SHA1 hash:
ba52208e571aaf6bc749b633bd340d4e95fd921c
Link:
https://www.unpac.me/results/6858e1e1-c353-44d5-b93f-28228a833b02/
SH256 hash:
55028ddc6704717154ae4a43603da57d1099caee821c64c92722519f00c88e6d
MD5 hash:
4d50ca07e1bc5f7ea745cc7e01f8e9ba
SHA1 hash:
82018de19c15987527ed0b063393863561340ca5
Link:
https://www.unpac.me/results/6858e1e1-c353-44d5-b93f-28228a833b02/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/55028ddc6704/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/55028ddc6704717154ae4a43603da57d1099caee821c64c92722519f00c88e6d

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: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.

Web download

Formbook

Executable exe 55028ddc6704717154ae4a43603da57d1099caee821c64c92722519f00c88e6d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1871135/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/213643/

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