MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a28ff821e1218af701aa2e5fde3e8a58a8133178514a4730805bed29dccfa029. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash: a28ff821e1218af701aa2e5fde3e8a58a8133178514a4730805bed29dccfa029
SHA3-384 hash: 4482bd3078c36df60e2156f2ef80084fcdbed21969807c0f700bf00e17392ce82c98393864067667dda3264454d0612a
SHA1 hash: 931c30b8348f15aa7845018b524449d70703050e
MD5 hash: 549e176394620ca4bb48a6d5d39a3413
humanhash: floor-uranus-north-maryland
File name:Skystar Co K.S.A Purchase Order.exe
Download: download sample
Signature Formbook
File size:182'784 bytes
First seen:2022-04-15 03:29:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 768:FiPcajYZKp/A/Veua08e3EYGKeRL+ZjtYcFmVc6K:1ajvlQD9mVcl
Threatray 14'918 similar samples on MalwareBazaar
TLSH T176046402257CA8C3F69C6C73A8DC975E1EE06C6C46761469F247B6E9E53F103E6312E2
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 74fcd4c2c4c4c0d4 (4 x Formbook, 3 x NanoCore, 2 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
310
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Skystar Co K.S.A Purchase Order.exe
Verdict:
Malicious activity
Analysis date:
2022-04-15 03:30:45 UTC
Tags:
formbook trojan stealer

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

Behaviour
Creating a window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated
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:
Unknown
Detection:
malicious
Classification:
evad
Score:
72 / 100
Signature
.NET source code contains potential unpacker
Executable has a suspicious name (potential lure to open the executable)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-04-15 00:41:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
53
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Behaviour
Suspicious use of AdjustPrivilegeToken
Unpacked files
SH256 hash:
a28ff821e1218af701aa2e5fde3e8a58a8133178514a4730805bed29dccfa029
MD5 hash:
549e176394620ca4bb48a6d5d39a3413
SHA1 hash:
931c30b8348f15aa7845018b524449d70703050e
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:INDICATOR_EXE_Packed_SmartAssembly
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
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.

Malspam

Formbook

Executable exe a28ff821e1218af701aa2e5fde3e8a58a8133178514a4730805bed29dccfa029

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments