MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 13b1055dba2d6d9ff9b2937ca9a051ac5ae3c9faff869d887deff0fdd53bd936. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments

SHA256 hash: 13b1055dba2d6d9ff9b2937ca9a051ac5ae3c9faff869d887deff0fdd53bd936
SHA3-384 hash: d66a1f8bf32ecca2bb997a144c2d3089355d839cbcfe389ba4842aa4663572cb72e925622f281bee0188cfd80c1bfcb6
SHA1 hash: 04163f7472d50decef86e8d44200fa8f96a76be0
MD5 hash: 990581a42d44ac0df5a9f77020722a52
humanhash: november-friend-undress-north
File name:SecuriteInfo.com.W32.AIDetectNet.01.30943.16983
Download: download sample
Signature Formbook
File size:456'704 bytes
First seen:2022-06-13 07:59:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:rHBafvIF3ah4v5g6/z0aBXHDZ8l+bWBwfzb0RUb5Sqduv:0fkaWxoaBXH9e+SsZXduv
TLSH T13FA412AAE279A63FDEEE4B7D5073300503ECD6A26157F34B0D6578EE060DBD94402987
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 0022a3a2b8a6e610 (16 x Formbook, 7 x AgentTesla, 6 x Loki)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
238
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.W32.AIDetectNet.01.30943.16983
Verdict:
Malicious activity
Analysis date:
2022-06-13 23:57:24 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Woreflint
Status:
Malicious
First seen:
2022-06-13 02:17:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:usgi loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
4fb1d573b226f8da267da7736bea7f3edd62bad85c40196c27863fc0dc81e6e9
MD5 hash:
2cac6ec6e625d00090607e25a2f095d0
SHA1 hash:
aa7eaf135dfa96a049a847ddea30732589b19b4d
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
4dcefcb8d86436a3b1d0a9190841c697831828f2603983794c7bcc47d0948cfe
MD5 hash:
28a59afc41331522ec7e7fb936292c42
SHA1 hash:
3de593cec0129b5b753aa64d3f2b224f34a1188b
SH256 hash:
85f804a40409f0205718b5617198b1cef4520173625c1f4aea117cb8fb3b82da
MD5 hash:
2888cfce6c88dab51f524133891807cc
SHA1 hash:
3d09766c607aaa84b4bd69fea13b903a890052ce
SH256 hash:
dec15271d422cf3b82c0a94cf147312bb5a4a4f262da4b698ffe7e6bdaf18053
MD5 hash:
79c5c39e29ebe233cd13a50987e64609
SHA1 hash:
0560314716e6519158009159c017d2b52116608e
SH256 hash:
13b1055dba2d6d9ff9b2937ca9a051ac5ae3c9faff869d887deff0fdd53bd936
MD5 hash:
990581a42d44ac0df5a9f77020722a52
SHA1 hash:
04163f7472d50decef86e8d44200fa8f96a76be0
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
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.

Comments