MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 da37c66e5cc323386f9637b402df14fc02cd76eb9abc6853a458d266db163088. 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 8 File information Comments
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SHA256 hash: da37c66e5cc323386f9637b402df14fc02cd76eb9abc6853a458d266db163088
SHA3-384 hash: 61d1482f90cceb6ed910ee04b47896f0fd24e2a961fee1352e6a7ff309af776df54baa2859f7b2261ce9c185071350e3
SHA1 hash: e0f037718b2d9353c2f551eb331d62ffc183ee35
MD5 hash: 882ca694ee67f8ac2ebea765928eca0d
humanhash: september-freddie-freddie-eleven
File name:SecuriteInfo.com.Win32.PWSX-gen.18674
Download: download sample
Signature Formbook
Create hunting rule
File size:1'281'536 bytes
First seen:2022-09-15 05:40:55 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:jsL0yM0dEk27/xFlAkgatzfDlP3+NbDhutts+16PcX6KKKKKKfj6:woLaEkA/hOKVKDhosfPo6KKKKKKfj6
Threatray 14'350 similar samples on MalwareBazaar
TLSH T1E255F1585669C106ECEAA735DF92E1314B645EE882AEC24F01FC3C77B37E38614913A7
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon f4988aa6a68ad8d6 (16 x Formbook, 1 x NanoCore, 1 x Loki)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
273
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/310121/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.18674.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
packed
Link:
https://www.filescan.io/uploads/6322bb2c35180ec88e2c1809/reports/65b0abe5-cb28-44b2-ab55-f43bc710be10/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6ea807b4-0e7c-4a1b-a429-de7a4bd90d79
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1070682
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/da37c66e5cc323386f9637b402df14fc02cd76eb9abc6853a458d266db163088/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-09-15 05:41:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
29
AV detection:
20 of 25 (80.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3i34m3s4ymrtq34wg62afxyu7qbm25xltk6gqu5eldjgnwywgcea._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3ca280d2c5ee9398048047d72c785b1927a7a09c1d4a637737b1d3902587f948
Formbook
623c6c21085259132619e432eec989af10635e0eee84982462c4b64a139fa404
Formbook
78d04244289fe215008b2c7d8937813b740228e5b60092287346e66e29c8182d
Formbook
7ca3b28aa32d6b9bd972c430c47691db7212f9fd7b713c3ff2fab8b10a0bd66a
Formbook
7f0d2570e95993562f659f45e635df91b3155a8c220bc1b859f1cf838bb66278
Formbook
a2161a7d0675f94235710ab04b4324c454a76b8f3c0a30ea2ba3777e197dfcea
Formbook
c5aaaf40148a7d8bd30681af759e7e922c491404610c1691d3ce7d1c1b849bcd
Formbook
fc15ab19130fccdae7dee477e0ae6d711fe3492cbac1b7e5d472eae4902f9516
Formbook
+ 14'340 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:e7nb rat spyware stealer trojan
Link:
https://tria.ge/reports/220915-gde39scae2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0a3cf775-de79-401d-9970-3711a420229d
Unpacked files
SH256 hash:
db6ae0ccd2db56b33660156b9fb27c0f81a1c35e171f3464627d432eab2619ef
MD5 hash:
13359d2c2b1ab26168847e365cd43773
SHA1 hash:
97764b4ac49b29c23c7da8f746c12a2083c52d50
Detections:
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/b82ff930-e4d5-4f8d-bb8d-b263a0cd41f1/
Parent samples :
7f0d2570e95993562f659f45e635df91b3155a8c220bc1b859f1cf838bb66278
da37c66e5cc323386f9637b402df14fc02cd76eb9abc6853a458d266db163088
b78a810a8191aa868b43012e177e7fba672974dfb438f31405caea35beb75a48
67dfdca1a2d42035d8ef9bde053531051793e2f13e30b8f1fe0a81fdd52e99fb
e5afa7413d271eb60f89be735d02aee02bb7390c022eeadf46ff30448416995d
71dcac38a6bf66dfc49a933ccfcf01bfce78edc276d11ac181b2924ebf0b9e42
SH256 hash:
41b028c61e5d5e961a675b3fcbf760e0495aaed32681847a01e2b0e9be704bdf
MD5 hash:
b7fd0ed124454c48dd419306d4e2acd9
SHA1 hash:
9ae87d0a7f0fdb2964b5986a229753c49d467a0e
Link:
https://www.unpac.me/results/b82ff930-e4d5-4f8d-bb8d-b263a0cd41f1/
SH256 hash:
7375ebdfeb1fa91508bea147870a8c378c5b7904b31c1a73a08d8da4cac14861
MD5 hash:
a41cc86bb6cb8c616503510265fa5ffe
SHA1 hash:
6e51cc0aa259726beb9576cb5c3c74e42b0c230f
Link:
https://www.unpac.me/results/b82ff930-e4d5-4f8d-bb8d-b263a0cd41f1/
SH256 hash:
3980c107969be775f6fb54cd5275ec5f2ad9e82ff706cadf6e14efa94776738b
MD5 hash:
c40e45fa166779a6364d648742c9760c
SHA1 hash:
3a3296e0887befd4ecdf9913635b5844cbf96edd
Link:
https://www.unpac.me/results/b82ff930-e4d5-4f8d-bb8d-b263a0cd41f1/
SH256 hash:
44c50087cbd9a86677ff5b898c1ad52abf5f25297179a174edcc8b81dec967fc
MD5 hash:
d012ba9057bf67c7f29871326f2af919
SHA1 hash:
1d5b8b512b37f0e1900496b578117082929654c7
Link:
https://www.unpac.me/results/b82ff930-e4d5-4f8d-bb8d-b263a0cd41f1/
SH256 hash:
e20ec8f3c957bcb6a194ef688bae8af2015cfffb20e7baf8b2114d7b70ade4ee
MD5 hash:
35cb29046968faca7f3f3b4463449b6c
SHA1 hash:
088c8c30ec1bece0a4b5bbfe3982b073f8b95598
Link:
https://www.unpac.me/results/b82ff930-e4d5-4f8d-bb8d-b263a0cd41f1/
SH256 hash:
da37c66e5cc323386f9637b402df14fc02cd76eb9abc6853a458d266db163088
MD5 hash:
882ca694ee67f8ac2ebea765928eca0d
SHA1 hash:
e0f037718b2d9353c2f551eb331d62ffc183ee35
Link:
https://www.unpac.me/results/b82ff930-e4d5-4f8d-bb8d-b263a0cd41f1/
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/da37c66e5cc323386f9637b402df14fc02cd76eb9abc6853a458d266db163088

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:RansomwareTest4
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest5
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

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/310121/

Comments