MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b36a6dea23c15e5783122d763255c950ee1390c603c7f2c1f12ef3b3a0bf032a. 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 3 File information Comments

SHA256 hash: b36a6dea23c15e5783122d763255c950ee1390c603c7f2c1f12ef3b3a0bf032a
SHA3-384 hash: da71bbbe1ed056a0844b74f91b981982299701d2815f2c938085636d1a8c89eb91dcbcde21f409fcd0241aae96d3532e
SHA1 hash: d798d89134f41d77b11415fd9a8c70fa9c27306e
MD5 hash: 2b08b5ac33e33dca695e36acc14f82e4
humanhash: quebec-don-helium-oven
File name:SecuriteInfo.com.Trojan.Packed2.50433.2440.18692
Download: download sample
Signature Formbook
File size:813'568 bytes
First seen:2025-11-21 13:07:09 UTC
Last seen:2025-12-08 15:27:17 UTC
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:+nd57PnTyhvcjikT4XjlMeZXrCxwzgLoMygPiK0jp7BRr6puqPyU:4d57PdWg4pXrOLLy6f0jZBRSVyU
TLSH T132050215220ACE07D4E31FF51971E2B816B9AFDCE521D34A8FDA2CDFB5687805A503A3
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 SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
121
Origin country :
FR FR
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
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Trojan.Packed2.50433.2440.18692
Verdict:
No threats detected
Analysis date:
2025-11-21 13:08:56 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
shell virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-21T07:14:00Z UTC
Last seen:
2025-11-23T11:22:00Z UTC
Hits:
~100
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.18 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Trojan.TelegramRAT
Status:
Malicious
First seen:
2025-11-21 11:34:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
unc_loader_037 unc_loader_078
Similar samples:
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
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
Unpacked files
SH256 hash:
111e88b06ab4bda9dcea292177f2fbf656f056ee3bc315aea8861653872867a4
MD5 hash:
ca046727926a963297a6f802f7f59312
SHA1 hash:
49c2d05a1f1ea2530c2b54c1450b70ab1595175c
SH256 hash:
29b05fb09235ee0911ebc2fcf0bdf1cfd05a71fa432b875daebf5f15effd6102
MD5 hash:
49b5f3b49138c8b539fe52ac45e80f47
SHA1 hash:
94f9507385a5c54a0c9fda0afcd7cb88eacf04a8
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
079f1dff2961325a3476c64504ffcd4d878d13b54717f8810258d368a97985de
MD5 hash:
cd9b1f48cd03880d3fc612a29cbc6450
SHA1 hash:
af47ec6e1c1f25ce7ad52c8d527fdbf2bb60cc1f
SH256 hash:
7024a0df6f1a45b934669fc0bd717b8fd3fcc8cbaf201150ba0e7a3198822d0c
MD5 hash:
2c4b43ae99f679219b138694c116619f
SHA1 hash:
af14d57b9cea635da88e9be0cf6458b9743db7d5
SH256 hash:
b36a6dea23c15e5783122d763255c950ee1390c603c7f2c1f12ef3b3a0bf032a
MD5 hash:
2b08b5ac33e33dca695e36acc14f82e4
SHA1 hash:
d798d89134f41d77b11415fd9a8c70fa9c27306e
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
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

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