MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51e8dbc8614831a6316ec2472aaf6887e105360b2eddfae153e8be59cd155bab. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 51e8dbc8614831a6316ec2472aaf6887e105360b2eddfae153e8be59cd155bab
SHA3-384 hash: b5a2bb001cfd178b69b6d1c27f7a984216b6a9f6b3d7f398b883bf47f8f4e4d080d5d70ea15871fc9c0c40d24af56b0f
SHA1 hash: 257cb1c3a96981a6873d010a38cfb4f92b90a9f6
MD5 hash: a3372ab512c306199443fe53f87b6bf9
humanhash: berlin-pizza-delaware-lactose
File name:Purchase Order.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:894'976 bytes
First seen:2022-08-01 17:22:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'475 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:icHhLuyy+1WrB8+my/InQR3zfHeisjPGn:vLuyy+MvmSInQRbHvy
TLSH T19C15F12135D6736EF03A87784BD0E4A15BF1F917C609E6763DA5238BC732E808A915B3
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
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 GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
350
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/295658/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
DNS request
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
67%
Tags:
packed
Link:
https://www.filescan.io/uploads/62e80c70d40ca366615813ab/reports/ddfb7340-990b-4e67-9bd8-bbe32824367c/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ec1cc753-b39b-49fd-95d4-6f04f2102417
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1044361
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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
System process connects to network (likely due to code injection or exploit)
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:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/51e8dbc8614831a6316ec2472aaf6887e105360b2eddfae153e8be59cd155bab/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-08-01 16:31:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=khunxsdbjay2mmloyjdsvl3iq7qqknqlf3o7vykt5c7fttivlovq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/220801-vx44dsgbaq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
369f9318498f82a1361538fe685db0594c697897cf8868520589492ba99ce8d7
MD5 hash:
6f61010c7152906b2f493aec20967751
SHA1 hash:
c065ee03bbf508355c2197ed700e9eac1f881f4a
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/7db4740f-ca9a-4405-a493-93b1e3c37bf5/
Parent samples :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 hash:
5e97ccd8dafcb36b3cb772f6a2fd425abcf221ab9ea1930e8c2618c95332f2c6
MD5 hash:
01800f6b045def8d90c649842f56d752
SHA1 hash:
f8434a4636d0772d01aac44bb3f9753a41f01d34
Link:
https://www.unpac.me/results/7db4740f-ca9a-4405-a493-93b1e3c37bf5/
SH256 hash:
161a6d10650746fc4452f060ba5e0c51693f52a76f54e917f91b8059a522f879
MD5 hash:
b99a910ee5685c0dd7f780858d31f81f
SHA1 hash:
a347615f4d65a754bf9253cf578409e7f8e0c950
Link:
https://www.unpac.me/results/7db4740f-ca9a-4405-a493-93b1e3c37bf5/
SH256 hash:
51e8dbc8614831a6316ec2472aaf6887e105360b2eddfae153e8be59cd155bab
MD5 hash:
a3372ab512c306199443fe53f87b6bf9
SHA1 hash:
257cb1c3a96981a6873d010a38cfb4f92b90a9f6
Link:
https://www.unpac.me/results/7db4740f-ca9a-4405-a493-93b1e3c37bf5/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
Link:
https://yomi.yoroi.company/submissions/51e8dbc8614831a6316ec2472aaf6887e105360b2eddfae153e8be59cd155bab

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.

Malspam

Formbook

Executable exe 51e8dbc8614831a6316ec2472aaf6887e105360b2eddfae153e8be59cd155bab

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/295658/

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