MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3e1c698228509853ff20630c605525450e37d2741f7137b3784a21d4e5d7a998. 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 4 File information Comments
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SHA256 hash: 3e1c698228509853ff20630c605525450e37d2741f7137b3784a21d4e5d7a998
SHA3-384 hash: b3e7cece6786b443aa97ce029c570f10d1f930d9a80287b1a2759ef2b3cd2bc0541184a762aa9283970ff10693af257f
SHA1 hash: e7620407a9bdfb95dca3b8706f65023a341ec8d8
MD5 hash: a6447a2e9695be2fe367f00762b71080
humanhash: lion-uncle-lake-shade
File name:J7YKoy7RbeAhnI4.exe
Download: download sample
Signature Formbook
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File size:653'312 bytes
First seen:2023-10-10 17:00:30 UTC
Last seen:2023-10-10 17:38:24 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 12288:RfmNac5X9Kkzglj7elnSKYEHwPplDGxFSNRycKZbg2Moa:9GaetIlj7MRY3RlDGxEyBg2MX
Threatray 51 similar samples on MalwareBazaar
TLSH T1E2D4F13C33A86E47FB64C5FF54A1115993B9611B2459F2D42DC6E0CA78E3F89CAC281B
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
324
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
J7YKoy7RbeAhnI4.exe
Verdict:
Malicious activity
Analysis date:
2023-10-10 17:04:08 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/a33c9e99-69c1-44d4-9d7b-c1bcbe5356fb

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/452945/
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.9003.29791.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
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
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/3e1c698228509853ff20630c605525450e37d2741f7137b3784a21d4e5d7a998
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/68d66efa-a33a-4ffb-8dc0-4ec5cee8e2f5
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1323121
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.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
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1323121 Sample: J7YKoy7RbeAhnI4.exe Startdate: 10/10/2023 Architecture: WINDOWS Score: 100 34 www.jayanamachine.com 2->34 36 www.haokake.top 2->36 38 13 other IPs or domains 2->38 42 Snort IDS alert for network traffic 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 11 other signatures 2->48 11 J7YKoy7RbeAhnI4.exe 3 2->11         started        signatures3 process4 signatures5 56 Tries to detect virtualization through RDTSC time measurements 11->56 14 J7YKoy7RbeAhnI4.exe 11->14         started        process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 15 7 14->17 injected process8 dnsIp9 28 www.astoriaapiary.com 74.220.199.6, 49750, 80 UNIFIEDLAYER-AS-1US United States 17->28 30 0826.93cu.com 154.12.93.8, 49753, 80 COGENT-174US United States 17->30 32 4 other IPs or domains 17->32 40 System process connects to network (likely due to code injection or exploit) 17->40 21 cmd.exe 17->21         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3e1c698228509853ff20630c605525450e37d2741f7137b3784a21d4e5d7a998/
Threat name:
ByteCode-MSIL.Trojan.Malgent
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Status:
Malicious
First seen:
2023-10-10 13:17:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hyogtarikcmfh7zammggavjfiuhdputud5ytpm3yjiq5jzoxvgma._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
15426243aa8d60c8592a759e72f42ee2b1d9f2cbf96018c565ce70fd6778ca33
Formbook
1be417c3be0fcbe972e13bd2d3e4494e08a94bd4f572b361cadae3b88be1cc5b
Formbook
21140ae60aa6ba79a4d6cfc5aa5fd4cf4aa08ac5a522a4a2393f4c9552224529
Formbook
4af5374d05140e1ebf05625397c061e7e6e6396597399880f903cdda22466875
Formbook
64fdde31e18afd348c0727affafb347f0cd0203ec20268fbea9dcb4cc6d1caa9
Formbook
69b9df80a0b730564b2b56e235646d630d2bfd6d968b967f568dc298a22c6ec0
Formbook
6ec844914b335f0e27b9f536da5691fcc06e6ecc80d0af8dd7bc3ed8b3ee0a60
Formbook
d1fdb78142a09be2db38f3e704f9cc96649745d1055eef07a702ed674cb4b9ed
Formbook
f9a4e3002fdbcd93464f38fc49bebadbcc0417454c702e8298cf245fc751eee9
Formbook
+ 41 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:ur25 rat spyware stealer trojan
Link:
https://tria.ge/reports/231010-vjjwasef7y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
41b7f67e70975a9743009770864a916f94cd07a11e6c05ddad4ac14f2549f761
MD5 hash:
9db9075781b8d531290ab8f9caa801a7
SHA1 hash:
29ef7daea8e1fc0ccefd973db686ef209ad37cb1
Detections:
FormBook
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win_formbook_w0
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win_formbook_auto
Create hunting rule
win_formbook_g0
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Link:
https://www.unpac.me/results/29e44888-2279-485c-9158-99c89b8331cc/
Parent samples :
566e2a793ef02ec92066c9324c65bb406790217ba0a3158dc9ba56b612ba465e
6ec844914b335f0e27b9f536da5691fcc06e6ecc80d0af8dd7bc3ed8b3ee0a60
3e1c698228509853ff20630c605525450e37d2741f7137b3784a21d4e5d7a998
e3a54b7c39fc2f292bae653dcfe4e68f162ec5498cd2697bcdc2993767fb66f5
67489279b14b30ad57178036c4c6d04037a31c41841eb812231dcf8c921f8b18
18123906c231582b7b137ee1e95336f382ce4bfeb9621b5f06aad0baec7fb619
SH256 hash:
a040efb5ce92995b5d40fd2536c8ad6a93f2d8584a3dd52f07cdb0b34c9e6e29
MD5 hash:
a5a52675690de850e3de6c05a9bd885f
SHA1 hash:
fd953edf2e910fbb43c9e6d4c8d48632bb4e55c6
Link:
https://www.unpac.me/results/29e44888-2279-485c-9158-99c89b8331cc/
SH256 hash:
b1270dc9ec3f22c6fd2296239426ac7c48589589580d4a1b3da8188920b22a63
MD5 hash:
5c904da8528cfb1b87b15a6aa7c059cd
SHA1 hash:
f0a192969485d1bc34bf52adf37d9c20176d6b85
Link:
https://www.unpac.me/results/29e44888-2279-485c-9158-99c89b8331cc/
SH256 hash:
c7d38b24384b2f82be8ef8bc9a17bb6b8c32014cba363215b438339c15cad032
MD5 hash:
f70815d38869f04eaad0e1a844e144fa
SHA1 hash:
ab821dabb067b336d24be9c418f20caa5d266ae3
Link:
https://www.unpac.me/results/29e44888-2279-485c-9158-99c89b8331cc/
SH256 hash:
3e1c698228509853ff20630c605525450e37d2741f7137b3784a21d4e5d7a998
MD5 hash:
a6447a2e9695be2fe367f00762b71080
SHA1 hash:
e7620407a9bdfb95dca3b8706f65023a341ec8d8
Link:
https://www.unpac.me/results/29e44888-2279-485c-9158-99c89b8331cc/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3e1c69822850/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:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
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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 3e1c698228509853ff20630c605525450e37d2741f7137b3784a21d4e5d7a998

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/452945/

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