MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c12c8b215ea70724d05e814efd6d317d96477e8c2cb36d48be2f9b8de14b2b60. 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 2 File information Comments
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SHA256 hash: c12c8b215ea70724d05e814efd6d317d96477e8c2cb36d48be2f9b8de14b2b60
SHA3-384 hash: 9c30de27006a59699471d757d1f8015633b338688ead22ae1724fd490d04862f549419922964a686a1e56b3516572a14
SHA1 hash: 0df5c246885a5193ce3597be79adf7be8b67c62a
MD5 hash: 3491394f7e0e56e25541ad3540386711
humanhash: nitrogen-nitrogen-network-iowa
File name:PO_YNS 5933.exe
Download: download sample
Signature Formbook
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File size:763'904 bytes
First seen:2023-07-24 06:06:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:bgvJRBusyQA5cx9akC/7y0yMD9gkRGHeQT24w/Lkh1si5sTPbK+vSn+X7/VVBy:uFuMfxPSy0yL841sD++S+X7/
Threatray 3'519 similar samples on MalwareBazaar
TLSH T162F4126537A92E23F3ACBDF48694940503716A123413D3CDDEB320896EA57D0FE61AE7
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 d455a86d496832b0 (15 x AgentTesla, 10 x Formbook, 8 x Loki)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
268
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
PO_YNS 5933.exe
Verdict:
Malicious activity
Analysis date:
2023-07-24 06:20:03 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/3cb610b7-833a-47ff-9116-9921c9e567b1

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/430561/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Stealer.37323.2513.23651.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/c12c8b215ea70724d05e814efd6d317d96477e8c2cb36d48be2f9b8de14b2b60
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/0fef5915-a9ba-4b0e-99c3-ccd1037c47ff
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1278057
Signature
.NET source code contains potential unpacker
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
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 FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1278057 Sample: PO_YNS_5933.exe Startdate: 24/07/2023 Architecture: WINDOWS Score: 100 40 Snort IDS alert for network traffic 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 8 other signatures 2->46 10 PO_YNS_5933.exe 3 2->10         started        process3 file4 32 C:\Users\user\AppData\...\PO_YNS_5933.exe.log, ASCII 10->32 dropped 56 Tries to detect virtualization through RDTSC time measurements 10->56 58 Injects a PE file into a foreign processes 10->58 14 PO_YNS_5933.exe 10->14         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 17 explorer.exe 1 14->17 injected process8 dnsIp9 34 www.yrtow333.top 107.163.192.187, 49720, 80 TAKE2US United States 17->34 36 www.67ucb.live 202.95.11.203, 49718, 80 BCPL-SGBGPNETGlobalASNSG Singapore 17->36 38 2 other IPs or domains 17->38 48 System process connects to network (likely due to code injection or exploit) 17->48 21 raserver.exe 17->21         started        24 autofmt.exe 17->24         started        26 autofmt.exe 17->26         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 28 cmd.exe 1 21->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c12c8b215ea70724d05e814efd6d317d96477e8c2cb36d48be2f9b8de14b2b60/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-07-24 01:20:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
21 of 37 (56.76%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yewiwik6u4dsjuc6qfhp23jrpwleo7umfszw2sf6f6ny3yklfnqa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
24e91c3b0d477625a70c71ea05ad7e6ce3dd9582567bb7c33ed6ff537915490c
Formbook
363b5b951382bb7c9af26fadf9a61541d5a2d4e733adcb40fbc87e18579fd69f
Formbook
6333f3de90012f2acd3436fbd0bc2672a989238ccd7ea97a948c2f07f6397a9e
Formbook
7510d23c5bd88ede2d8d2efbd6d851da1dfcdc1dfb089b80a4a310b7fb96df4a
Formbook
88b562c7a56631c4d9221faa41b327b797546ca3be4577438357ac63eaaa316d
Formbook
a65903f3968b96768cd2ca31af342c23b7f8c8b0d928b6a7f9119c80f105b3ee
Formbook
af093bd71cb66c24a34d31d6efa125d86e6ffa89bfbfad9d20658889553e133d
Formbook
b0504206461bb3a04bc80d299501c2d2765f097bc621a0e86e5b9e889f383287
Formbook
dce8dfa0fb0baeafb31cb8072e1f9421919a796f013d5dca81ab0697206a9762
Formbook
e5422aab2b092de22741f596fef6ec85bb285f9ddee4efd3b1e5a165f7bddbaa
Formbook
+ 3'509 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:kp16 rat spyware stealer trojan
Link:
https://tria.ge/reports/230724-gvcz8sad32/
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:
b0f628c63fe5793783414dcc5983b7e182ebc801cd2fd256c52bc2c443f5fbb4
MD5 hash:
dac078bd0644cd2a9ec1753f29d632b2
SHA1 hash:
5d70406737173a7845e4c54ad8d33cb7261ef6a5
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/8cbb41fb-bf28-480e-a6da-bcb674b6273c/
Parent samples :
c12c8b215ea70724d05e814efd6d317d96477e8c2cb36d48be2f9b8de14b2b60
6c2878ebe0b46fa1c53e17178c365200c86d74530cd80a278d8be8eee02a136d
61dbeb0e19a0d2d2cb57d370bfc4d56e5aac60f82943dc908458e828c9e4b208
SH256 hash:
df2b69056a7309946b2cacb49f208818ba4338e098b6dfb7f75e98cd5dc6ecd0
MD5 hash:
edb15a3c853291a438880ab8413459c1
SHA1 hash:
f64b5556fdcf4332f9c12768a8e67cefe5a6ae8d
Link:
https://www.unpac.me/results/8cbb41fb-bf28-480e-a6da-bcb674b6273c/
SH256 hash:
7c743d979549f931d7101d1a14c14841ff47c848a3f30e31882d0d958bf5f941
MD5 hash:
508ba12479b3d78edb93f63b40ab3b7f
SHA1 hash:
d72b842c46546e4e494c9338b530e305dae1d5d2
Link:
https://www.unpac.me/results/8cbb41fb-bf28-480e-a6da-bcb674b6273c/
SH256 hash:
e6f6d4537b5a06dcaa639efb0f59ad138130ef4c513244de3546a5738c0ebed3
MD5 hash:
04c1c72fcdab1c3639a9bedb97400004
SHA1 hash:
0e02ae80df4243f81292cbfbed7037f171aaf544
Link:
https://www.unpac.me/results/8cbb41fb-bf28-480e-a6da-bcb674b6273c/
SH256 hash:
c12c8b215ea70724d05e814efd6d317d96477e8c2cb36d48be2f9b8de14b2b60
MD5 hash:
3491394f7e0e56e25541ad3540386711
SHA1 hash:
0df5c246885a5193ce3597be79adf7be8b67c62a
Link:
https://www.unpac.me/results/8cbb41fb-bf28-480e-a6da-bcb674b6273c/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c12c8b215ea7/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.61
Link:
https://yomi.yoroi.company/submissions/c12c8b215ea70724d05e814efd6d317d96477e8c2cb36d48be2f9b8de14b2b60

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: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.

Malspam

Formbook

Executable exe c12c8b215ea70724d05e814efd6d317d96477e8c2cb36d48be2f9b8de14b2b60

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/430561/

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