MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1f5d8b875de281a0242941e67fdfd65475c60a02f6ba10a050a4278179ac635. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1f5d8b875de281a0242941e67fdfd65475c60a02f6ba10a050a4278179ac635
SHA3-384 hash: b061bab84b6fc6a7ae07275bd9098309dd1efe703ef2af4df84056bdd8649f166ad8946478b9be755aa33ba2436a1f0a
SHA1 hash: 9aaa89ce0ec086c4852dc734f9ec6d3c29f13ec4
MD5 hash: 88630fc14734482abca877832b2b55cc
humanhash: rugby-six-don-football
File name:88630fc14734482abca877832b2b55cc
Download: download sample
Signature Formbook
Create hunting rule
File size:1'065'472 bytes
First seen:2022-11-08 16:17:17 UTC
Last seen:2022-11-08 17:45:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'603 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:GU79jikQWSuub5g7zY444+2Zm2HNA7EHE+B8D1:N9VQWvub2wKntAYHhB
Threatray 16'254 similar samples on MalwareBazaar
TLSH T1FF35CFA034B02FB9E67ECFF28628162483F32DA9225EF60E5CD170EA1573F925564D17
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13097/50/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
168
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
88630fc14734482abca877832b2b55cc
Verdict:
Suspicious activity
Analysis date:
2022-11-08 16:17:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1d3dd9f4-07a1-42f6-b63f-831786bedb31

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/330687/
Detection(s):
SecuriteInfo.com.Trojan.Siggen19.4547.26382.13467.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/636a813c47330babc05ffb93/reports/e4359ed3-66ff-4d6e-8eab-82fa07314564/overview
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/80803306-9fec-4993-8f49-6cb1f90c7104
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1108394
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Deletes itself after installation
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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:
n/a
Link:
https://mwdb.cert.pl/sample/b1f5d8b875de281a0242941e67fdfd65475c60a02f6ba10a050a4278179ac635/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-11-08 09:40:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wh25rodv3yubuascsqpgp7p5mvdvyyfaf5v2ccqfbjbhqf42yy2q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
406d598252fddcb959a27c828c8d258ae662e2a07cfcae1a107608e65c680c6b
Formbook
4514fc2a757de12c765ce8886024f9e88a24e8c716001b911fab3fa693fcbdb1
Formbook
4c3d925669944dbdec6649638901b8ccb110c2ff971d8cf558ef05f9980ecf69
Formbook
685d62ac47d37b18c403cc1d1923183bc78c11f4c1b18a95efe17521e704e96a
Formbook
8a44adde0f3cad02f2cfd6f4694a8e4455acd991bbe25520cf6bafe0839ed09c
Formbook
8a93dabd3dda5548c792f3064979a25a5770e5870a8d9989a0b16b5f2cc56204
Formbook
d638e7ea6048de830f145ff0e37950b009c10da0b49be87a145a9418541a0cdd
Formbook
e5afa7413d271eb60f89be735d02aee02bb7390c022eeadf46ff30448416995d
Formbook
ec81ecfe0f57e6ce43b9c5b605deead6f3d3c6f72a94e2d2bc14d6b0bda004c5
Formbook
ed575e87b8ddb54cdd3f247dc89ac394081bbd503cbd6b29d1a4592d60aa07a6
Formbook
+ 16'244 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:cfvc rat spyware stealer trojan
Link:
https://tria.ge/reports/221108-trx78ahccj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook
Unpacked files
SH256 hash:
520b96bd044d55e50fb15b9293d42249491ea89fed60ddae32223b0872c9c43a
MD5 hash:
687a0e79f2494a66e56c0cc95fe05f32
SHA1 hash:
4c590384a9ab04093ca86213daab14ef54795d03
Detections:
XLoader
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/f9a7d7c4-8499-45b4-8060-45381944882f/
Parent samples :
19b542c7a55d1ea37645a07c2546599d239d9d9409397c2400bdee7080744c35
406d598252fddcb959a27c828c8d258ae662e2a07cfcae1a107608e65c680c6b
b1f5d8b875de281a0242941e67fdfd65475c60a02f6ba10a050a4278179ac635
5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00
766ea01c507a77db5c1a0e9bf288049b4cbea966aec35c45e054f9c0af9e7f36
7cc325dd19e4ceb61b666da2a847b3f4f65e945ea1b71d7616cbc8d2dbea30d4
6bdb216a191a6e23f36ed558221cdcd5bef56ee67c2b6a3cc2082b83b8402562
c30a52af8e6fdb816ad1efea8ad00af616202cdd9df1fccaa85d744da35f65e1
27ebfb9c8f82ef351acfd50cb434134cf6cfb3378baf389ab84e7f5a397ea3df
SH256 hash:
c2ad820dbdac7366053658108f6bc2f7c5e50f7116eada4da668e7aca5c5cc3d
MD5 hash:
4f11e28ebec79ccb4939086fa1bba6da
SHA1 hash:
b2e737b5185ed3b531064ecb5f61d8fb76aeb701
Link:
https://www.unpac.me/results/f9a7d7c4-8499-45b4-8060-45381944882f/
SH256 hash:
e8d36a84de57b1706f4f1ef6eadf126a25715dfacc57bafae3d145b9ee2f9840
MD5 hash:
43ef1e584ad812141c604ef5a26fdea5
SHA1 hash:
daddbf6122f48d18b8ac4417cb73486b72f77cad
Link:
https://www.unpac.me/results/f9a7d7c4-8499-45b4-8060-45381944882f/
SH256 hash:
13e80fde971ff150ba6cc8008a9be6c02401fa85925b91662b84f1da7b0826d8
MD5 hash:
0d529117d051d9f40242787b84fe9e0c
SHA1 hash:
90623a4bc25293f51803b60cdcad2e54fbcee67f
Link:
https://www.unpac.me/results/f9a7d7c4-8499-45b4-8060-45381944882f/
SH256 hash:
7f272c4db499b1501a5ea1711d23de0e6a0c07faf16275e9b01722dae889c7c9
MD5 hash:
dd8b9511dda8eb7c84e1621046828883
SHA1 hash:
7f715270ffcadcba5c3148d2a0cecfaaf6c2e805
Link:
https://www.unpac.me/results/f9a7d7c4-8499-45b4-8060-45381944882f/
SH256 hash:
ae5927c745639d5772e4b369b67b3035202868733b970d5281321cdd3f8ae097
MD5 hash:
d8243340f197118ced9b9f187abfc7bd
SHA1 hash:
06887a84579d7c76e8d26863e5661bb73014e78c
Link:
https://www.unpac.me/results/f9a7d7c4-8499-45b4-8060-45381944882f/
SH256 hash:
b1f5d8b875de281a0242941e67fdfd65475c60a02f6ba10a050a4278179ac635
MD5 hash:
88630fc14734482abca877832b2b55cc
SHA1 hash:
9aaa89ce0ec086c4852dc734f9ec6d3c29f13ec4
Link:
https://www.unpac.me/results/f9a7d7c4-8499-45b4-8060-45381944882f/
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: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 b1f5d8b875de281a0242941e67fdfd65475c60a02f6ba10a050a4278179ac635

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/330687/
  
URLhaus
https://urlhaus.abuse.ch/url/2404943/

Comments


Avatar
zbet commented on 2022-11-08 16:17:22 UTC

url : hxxp://103.14.154.18/cloudDrive/networksec.exe