MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2f8315de575da924de5e72a06c9cf1957b00db3c471316ce5e4bc159cd91c0e7. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2f8315de575da924de5e72a06c9cf1957b00db3c471316ce5e4bc159cd91c0e7
SHA3-384 hash: c2b4e9b639d9cb42b8cf10fab1894e34ceade33a3ba5053c24e00cb1dc70a62b05d621dcc5e88fb0190138c4661c6665
SHA1 hash: 475f0d4d2c7b3fc51d18f379ccf10701704f8380
MD5 hash: 7339869ac9b65a7f9f455b92822ce0e2
humanhash: timing-single-bacon-winner
File name:2f8315de575da924de5e72a06c9cf1957b00db3c471316ce5e4bc159cd91c0e7
Download: download sample
Signature Formbook
Create hunting rule
File size:768'512 bytes
First seen:2025-12-08 15:11:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:VxBq0C8ZY2vAEovZw+TMop451tkdDdLuH6Rwa5JlGE9sH28ddtxsV:amBApZw+v451uDxuH6maFGRW8J
Threatray 2'228 similar samples on MalwareBazaar
TLSH T100F412A41759EE12C4A21FB81930E3F857B49EC8E811D343DAFAACEF7C2A75524543D2
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
66
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
FormBook RoboSki
Details
FormBook
a decrypted component and its RC4 key
RoboSki
a Base64 + XOR/Sub-decrypted component, its associated key, a mutex, a filename, and ReZer0 configuration parameters including: a load type, a download URL and filename (if configured), an interval (if configured), and varying flags
RoboSki
an extracted ReZer0 payload
Link:
https://research.acce.ciphertechsolutions.com/results/93eb2128-c733-43ef-8c50-741047e7d6d5/
Malware family:
n/a
ID:
1
File name:
2f8315de575da924de5e72a06c9cf1957b00db3c471316ce5e4bc159cd91c0e7
Verdict:
No threats detected
Analysis date:
2025-12-08 21:11:15 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b54835cf-e438-43e4-9499-0405152d08be

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/43368/
Detection(s):
SecuriteInfo.com.Variant.Genie8DN.5.32672.30965.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6936eb0c881313558a2b8e2d
Tags:
shell virus msil
Verdict:
Malicious
Labled as:
Genie8DN.Generic
Link:
https://www.hybrid-analysis.com/sample/2f8315de575da924de5e72a06c9cf1957b00db3c471316ce5e4bc159cd91c0e7
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-18T05:07:00Z UTC
Last seen:
2025-12-09T06:42:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/2f8315de575da924de5e72a06c9cf1957b00db3c471316ce5e4bc159cd91c0e7/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/effb96ce-624c-417b-a9ff-ea5289a77b10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2f8315de575da924de5e72a06c9cf1957b00db3c471316ce5e4bc159cd91c0e7
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.33 Win 32 Exe x86
Link:
https://app.malva.re/file/7339869ac9b65a7f9f455b92822ce0e2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2f8315de575da924de5e72a06c9cf1957b00db3c471316ce5e4bc159cd91c0e7/
Threat name:
ByteCode-MSIL.Trojan.Darkcloud
Create hunting rule
Status:
Malicious
First seen:
2025-11-18 08:39:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
27 of 36 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=f6brlxsxlwusjxs6okqgzhhrsv5qbwz4i4jrnts6jpavttmrydtq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
unc_loader_078
Create hunting rule
Similar samples:
301700358a42c5d078221f9d13d483ad9d1498eaa3dc547ff3aec4c41237f97e
Formbook
68ef29d9bd6e88b4fda357fa69b156376a0a611d287e909285bebbc0d6afc059
Formbook
69ae2e849e4b148f879630ae9e3a4f991602cc6a658dd732dd775c31839d69ce
Formbook
7be16d08f76a1f88d6ff634df15d045d532e8a7b67827e21f4c7d71f37f3718b
Formbook
9c7e2dde0946480aac4422abdb458efaa6d9809241c3a6d979a0dba92120f84d
Formbook
a4adfd6755c154832748d113637ec27285b103f719badc5ea7c142409b77d52d
Formbook
ae8ef5ed53654de05a32d157f76dfbdc2e734f842c3b815ec2ef5f37fd24f157
Formbook
error
Formbook
+ 2'218 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/251208-skrlesdp31/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/3994e998-7c77-4abc-8a9f-8f16b6fe4143
Unpacked files
SH256 hash:
2f8315de575da924de5e72a06c9cf1957b00db3c471316ce5e4bc159cd91c0e7
MD5 hash:
7339869ac9b65a7f9f455b92822ce0e2
SHA1 hash:
475f0d4d2c7b3fc51d18f379ccf10701704f8380
Link:
https://www.unpac.me/results/680425f8-9d8f-41e4-a073-47821c8c9050/
SH256 hash:
0748253bb84d8fd3277d926bee9aae97560c37921ccb3d1dbf3199fae3e62a20
MD5 hash:
0b2dd04f55951e3d7e42268c47161128
SHA1 hash:
1b4cd4e9944032fe88cac5dc0c5fc46d2189b327
Link:
https://www.unpac.me/results/680425f8-9d8f-41e4-a073-47821c8c9050/
SH256 hash:
0fb0043d7310d1b829e9094ad38a6ac17105e2615cbb20bf2b0bf657a00387f1
MD5 hash:
02ff75dc780fec81081d81a551410a77
SHA1 hash:
737abbfef9d427b8bd9704b4e7a6bdead89d5877
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/680425f8-9d8f-41e4-a073-47821c8c9050/
SH256 hash:
b23b1cbc9307d22f064b6b82a258e316863b6a6793528705ba9e9789ca534e39
MD5 hash:
8277b03f43a2d15e5e1621556acdabcc
SHA1 hash:
73ea129498ee684797d56d727a714d4a6a9b31f2
Link:
https://www.unpac.me/results/680425f8-9d8f-41e4-a073-47821c8c9050/
SH256 hash:
ae9e767716c6895a278ae4f10074ad13b37b8555becc47473593912b5e74e418
MD5 hash:
9790dff7c764731d58298f832f4ee7a6
SHA1 hash:
37be16b575ab689dc0e60daa967e52396a2e563a
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/680425f8-9d8f-41e4-a073-47821c8c9050/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2f8315de575d/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
Create hunting rule
Author:malware-lu
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.

Cape
Cape
https://www.capesandbox.com/analysis/43368/

Comments