MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 47155987c94e0b921887ed3aa2278fb857781238c518fbea52224728b88b0436. 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: 19


Intelligence 19 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 47155987c94e0b921887ed3aa2278fb857781238c518fbea52224728b88b0436
SHA3-384 hash: d0eae1e3589931a30733fb8d3ea9a69318667ec17be6fa411359c597272f2b093b434f42aa01da3d325867fc3023a9e3
SHA1 hash: ab48904a3f978a17fc74bc11785fb2b3dc2ab8e4
MD5 hash: 3ad153a9dfa77f9301691953b2d05661
humanhash: montana-wyoming-sixteen-california
File name:image003(01-03-23-09-11-24).exe
Download: download sample
Signature Formbook
Create hunting rule
File size:584'192 bytes
First seen:2024-09-12 09:11:21 UTC
Last seen:2024-09-12 09:35:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:AD7kv3tbsMa/FkR+D1R3dMT2coMQYJVZznMbs:ADopsXK+jiloMtJLznMb
TLSH T1B8C4124551B81F32E9FA43F36652496003F5A82FA938E64D4DE5B0CE1EADF450382F9B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
396
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
image003(01-03-23-09-11-24).rar
Verdict:
Malicious activity
Analysis date:
2024-09-11 10:42:29 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/e908ed44-a912-403d-a278-a4a302807131

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.MulDrop28.18819.13284.15682.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66e2b06476bc4542b0497ef8
Tags:
Execution Generic Network Static Stealth Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/66e2b065725fc81856b228a3/reports/e140b687-662c-4ccd-9b47-2d7da4ba20a1/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/47155987c94e0b921887ed3aa2278fb857781238c518fbea52224728b88b0436
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/061567e0-468d-4182-b9a4-dabc7b980a12
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1509954
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Tries to resolve many domain names, but no domain seems valid
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1509954 Sample: image003(01-03-23-09-11-24).exe Startdate: 12/09/2024 Architecture: WINDOWS Score: 100 35 www.nder168.xyz 2->35 37 www.earing-clinic-support.xyz 2->37 39 10 other IPs or domains 2->39 43 Suricata IDS alerts for network traffic 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 51 9 other signatures 2->51 11 image003(01-03-23-09-11-24).exe 4 2->11         started        signatures3 49 Performs DNS queries to domains with low reputation 37->49 process4 file5 33 C:\...\image003(01-03-23-09-11-24).exe.log, ASCII 11->33 dropped 63 Adds a directory exclusion to Windows Defender 11->63 65 Tries to detect virtualization through RDTSC time measurements 11->65 67 Injects a PE file into a foreign processes 11->67 69 Switches to a custom stack to bypass stack traces 11->69 15 image003(01-03-23-09-11-24).exe 11->15         started        18 powershell.exe 23 11->18         started        signatures6 process7 signatures8 71 Modifies the context of a thread in another process (thread injection) 15->71 73 Maps a DLL or memory area into another process 15->73 75 Sample uses process hollowing technique 15->75 79 2 other signatures 15->79 20 explorer.exe 56 1 15->20 injected 77 Loading BitLocker PowerShell Module 18->77 24 conhost.exe 18->24         started        process9 dnsIp10 41 www.yfish.info 35.186.196.74, 64680, 80 GOOGLEUS United States 20->41 53 System process connects to network (likely due to code injection or exploit) 20->53 26 cmd.exe 20->26         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 26->55 57 Maps a DLL or memory area into another process 26->57 59 Tries to detect virtualization through RDTSC time measurements 26->59 61 Switches to a custom stack to bypass stack traces 26->61 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/47155987c94e0b921887ed3aa2278fb857781238c518fbea52224728b88b0436
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/47155987c94e0b921887ed3aa2278fb857781238c518fbea52224728b88b0436/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-09-11 11:00:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=i4kvtb6jjyfzegeh5u5kej4pxblxqeryyumpx2ssejdsroelaq3a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:m10i discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/240912-k56l3szhkf/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/54092358-4002-45cc-a131-cc5c32e14d19
Unpacked files
SH256 hash:
1114a7227f132fb8868b8d02718a4245a8c1afb2721eed0598fdc3b2050a6e83
MD5 hash:
5a4c8829135a1e62c4ccb8ff654d6955
SHA1 hash:
8cc91bee70c208c9ed0b2b2f9ad56030e9228456
Detections:
FormBook
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_w0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/bce92b0c-3b69-4fa8-adcb-585da1d789ca/
Parent samples :
47155987c94e0b921887ed3aa2278fb857781238c518fbea52224728b88b0436
1d5c6a9f196dc3d9f2e483744d7b872f01a96b8320ce3ffdc66b66542cb7a899
0e95933b378d0fbe6e132bab051ab9a3ab4fa3332828e72a0133749c1150b79f
462338cc416f17bb48135254e384d49b87dde3f0c40e6c51a70ad7abdecfc231
bcdb8d2083ae1e7cdf5894bfcf411cdc5e39059971c545e7485544d55c391418
SH256 hash:
d274793f053f434caf4c2dd1b897975c1588b9cba914dc2d702683a15a2a289d
MD5 hash:
6ce9de062291dfb0280771f10c9f367c
SHA1 hash:
545a9144da83159e82fed6626487d896f133522f
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/bce92b0c-3b69-4fa8-adcb-585da1d789ca/
SH256 hash:
c59a72e874640d2d2c5669edc14fdeb82a72cbacde61679907d2926b8ed79d08
MD5 hash:
b37fc99b846edbde0d0f36bee1760849
SHA1 hash:
0016396b048dcbda5b87742c32678f706db6362c
Link:
https://www.unpac.me/results/bce92b0c-3b69-4fa8-adcb-585da1d789ca/
SH256 hash:
47155987c94e0b921887ed3aa2278fb857781238c518fbea52224728b88b0436
MD5 hash:
3ad153a9dfa77f9301691953b2d05661
SHA1 hash:
ab48904a3f978a17fc74bc11785fb2b3dc2ab8e4
Link:
https://www.unpac.me/results/bce92b0c-3b69-4fa8-adcb-585da1d789ca/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/47155987c94e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/47155987c94e0b921887ed3aa2278fb857781238c518fbea52224728b88b0436

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
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 47155987c94e0b921887ed3aa2278fb857781238c518fbea52224728b88b0436

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments