MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f2edea91321e8b493635ce2e0a799d85e0354e15831b5e939fd7f6be71e9a6d. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f2edea91321e8b493635ce2e0a799d85e0354e15831b5e939fd7f6be71e9a6d
SHA3-384 hash: 520a9a654b33567ed4aa268ed6c6c986178f14aaafddb38ea15fe3a0a2b90ef82e7782575437ff29e59d47dd400a1f3a
SHA1 hash: 68c2d97c3119a8151c51acd1df54dcaccb5fdf1e
MD5 hash: 83ce7223ea93ef75811d5da60a95caa6
humanhash: leopard-fix-texas-thirteen
File name:gyq4rtQgI0wiQj2.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:801'792 bytes
First seen:2023-01-23 09:08:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:Sn/wxt1ZquJwlnu0bAre/uoIycNIDakxn27SZ0D0XkpLPyPAjLNoexY/5Tl/1:SqJwl34cxINTWuogG8LNNx85Tl/1
TLSH T1F7056A411ABB86E2E5F94E74123C64142AA11CD187ACF13ABDC67DBE9CE774F0099723
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
172
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
gyq4rtQgI0wiQj2.exe
Verdict:
Malicious activity
Analysis date:
2023-01-23 09:20:03 UTC
Tags:
formbook xloader trojan stealer loader
Link:
https://app.any.run/tasks/cb338446-92e2-4773-871a-7f8a95c77348

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/355805/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching the process to change network settings
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed phishing
Link:
https://www.filescan.io/uploads/63ce4eb31c9cbf7d6251981f/reports/42b39af5-03fe-46e3-94bc-fde352d96a26/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/b3547391-62d5-44bd-bc3b-0e90e632bbbf
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1156849
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 789581 Sample: gyq4rtQgI0wiQj2.exe Startdate: 23/01/2023 Architecture: WINDOWS Score: 100 32 Malicious sample detected (through community Yara rule) 2->32 34 Antivirus detection for URL or domain 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 6 other signatures 2->38 8 gyq4rtQgI0wiQj2.exe 3 2->8         started        process3 file4 24 C:\Users\user\...\gyq4rtQgI0wiQj2.exe.log, ASCII 8->24 dropped 50 Detected unpacking (changes PE section rights) 8->50 52 Detected unpacking (overwrites its own PE header) 8->52 12 gyq4rtQgI0wiQj2.exe 8->12         started        15 gyq4rtQgI0wiQj2.exe 8->15         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 12->54 56 Maps a DLL or memory area into another process 12->56 58 Sample uses process hollowing technique 12->58 60 Queues an APC in another process (thread injection) 12->60 17 explorer.exe 2 1 12->17 injected process8 dnsIp9 26 www.iaaconsultants.com 156.254.170.153, 49701, 49702, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 17->26 28 www.lgcypowernc.com 74.220.199.6, 49698, 80 UNIFIEDLAYER-AS-1US United States 17->28 30 2 other IPs or domains 17->30 40 System process connects to network (likely due to code injection or exploit) 17->40 21 cmd.exe 13 17->21         started        signatures10 process11 signatures12 42 Tries to steal Mail credentials (via file / registry access) 21->42 44 Tries to harvest and steal browser information (history, passwords, etc) 21->44 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4f2edea91321e8b493635ce2e0a799d85e0354e15831b5e939fd7f6be71e9a6d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-01-17 10:35:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
27 of 39 (69.23%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=j4xn5kitehulje3dltrobj4z3bpagvhblay3l2jz7v7wxzy6tjwq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:g44n rat spyware stealer trojan
Link:
https://tria.ge/reports/230123-k4fz2aec6v/
Behaviour
Modifies Internet Explorer settings
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Formbook
Unpacked files
SH256 hash:
e7242ae1cd799ea3200b7705221fdddd8abf588e87215a28057e02135bf547ad
MD5 hash:
6b1c0c833df93681eafdcf57072e8075
SHA1 hash:
5081196e5fd1e90c7564ce07096baf4668bbc3fc
Detections:
XLoader
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/b62a71da-ef82-4ab5-980d-bc33b8860aaa/
Parent samples :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 hash:
59bcd4203167ab824809004c0f4030f58acbd7c4f382b6e2d5f0c5695a71e170
MD5 hash:
3820d6b49c5470a173913d3933e38cff
SHA1 hash:
563a66c1ccd79d751de8b717f050300bdbf776db
Link:
https://www.unpac.me/results/b62a71da-ef82-4ab5-980d-bc33b8860aaa/
SH256 hash:
9f75bfb67da98cefeb325bf89be2ebf0b235dabbe8617d9e23e117e03e4cf07e
MD5 hash:
babf1779f37d62b3f1b56622cd680ec2
SHA1 hash:
f340b46cf13975e4a083a621336d3ccf630e66f2
Link:
https://www.unpac.me/results/b62a71da-ef82-4ab5-980d-bc33b8860aaa/
SH256 hash:
6f0aafd482a2ed898b7bafb07a0805074d0320b1c9b882dcf58ad0839f34b097
MD5 hash:
1b23b628c97816a3a858202d7f883ea1
SHA1 hash:
51d637ae40ef1e7a836ee0470b7942563d84a777
Link:
https://www.unpac.me/results/b62a71da-ef82-4ab5-980d-bc33b8860aaa/
SH256 hash:
ab2f8dbc2b147528cecac6ea1a8886951c424be0b2026743b39d97f0cbabb04c
MD5 hash:
77ab42f4bbbf4565846eb8953192d71f
SHA1 hash:
3c662c756cc31867c0473716a74e777a65ced550
Link:
https://www.unpac.me/results/b62a71da-ef82-4ab5-980d-bc33b8860aaa/
SH256 hash:
b2f66887779a03fdb1848644fa5375aa156b8d128da6b00422003280624cb8b4
MD5 hash:
dffec2b3a541ad322c45fb8951b9a913
SHA1 hash:
052206cd7d5b6979afb22f43e911c26682f830aa
Link:
https://www.unpac.me/results/b62a71da-ef82-4ab5-980d-bc33b8860aaa/
SH256 hash:
4f2edea91321e8b493635ce2e0a799d85e0354e15831b5e939fd7f6be71e9a6d
MD5 hash:
83ce7223ea93ef75811d5da60a95caa6
SHA1 hash:
68c2d97c3119a8151c51acd1df54dcaccb5fdf1e
Link:
https://www.unpac.me/results/b62a71da-ef82-4ab5-980d-bc33b8860aaa/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/4f2edea91321e8b493635ce2e0a799d85e0354e15831b5e939fd7f6be71e9a6d

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 4f2edea91321e8b493635ce2e0a799d85e0354e15831b5e939fd7f6be71e9a6d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/355805/

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