MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6b39391435f77016d7a9bb06c31345577faa06f44710e05bfc6ea15e7a47c027. 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: 13


Intelligence 13 IOCs YARA 16 File information Comments
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SHA256 hash: 6b39391435f77016d7a9bb06c31345577faa06f44710e05bfc6ea15e7a47c027
SHA3-384 hash: ca81f28d39cd7a1cb9f719a78d44e5e8a6ef5bb5a2cb47c28db9be5c9f78e354802155e6a1050bdf55b9ec606b84edf2
SHA1 hash: fd897ac1b6f58e721bbd2f9f6cc86bd34fcfa806
MD5 hash: 81d4c151a7aea2bb1adaadf2814d8984
humanhash: tennessee-alabama-snake-quiet
File name:SOA till 15.09.2023.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:353'295 bytes
First seen:2023-09-15 14:16:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:JYa6W9/rZK7PlhSHXlfnwKuUVb5rXKLMvtNd9UA/tiYedjm7KWHmLsIm:JYgvIhWXlPp7VbJrNd9UcBed62ImHm
Threatray 102 similar samples on MalwareBazaar
TLSH T1457412C832A5D557DE7000303C34A6253FFBAD2964B9450F67E0AD3AB5B36D39A1D362
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e4dcd8c4d4d4c4d4 (95 x AgentTesla, 51 x Formbook, 12 x RemcosRAT)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
295
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
SOA till 15.09.2023.exe
Verdict:
Malicious activity
Analysis date:
2023-09-15 14:18:14 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/0b9a1618-cc00-40fd-bc28-48bd66587ff8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/448864/
Detection(s):
Sanesecurity.Malware.28947.BadP.UNOFFICIAL
Create hunting rule

Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/6504675e7aa68bd3a1fb14b5/reports/0bced9a7-3b2f-4d96-9cbf-61358ac33048/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/6b39391435f77016d7a9bb06c31345577faa06f44710e05bfc6ea15e7a47c027
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/7de58fa9-cbee-4ffd-bd6b-a4d3c9549ed2
Result
Threat name:
FormBook, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1309023
Signature
Antivirus detection for URL or domain
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Machine Learning detection for dropped file
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)
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1309023 Sample: SOA_till_15.09.2023.exe Startdate: 15/09/2023 Architecture: WINDOWS Score: 100 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus detection for URL or domain 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 2 other signatures 2->48 10 SOA_till_15.09.2023.exe 18 2->10         started        process3 file4 30 C:\Users\user\AppData\...\puvbxjczdz.exe, PE32 10->30 dropped 13 puvbxjczdz.exe 10->13         started        process5 signatures6 62 Machine Learning detection for dropped file 13->62 64 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 13->64 66 Maps a DLL or memory area into another process 13->66 16 puvbxjczdz.exe 13->16         started        process7 signatures8 38 Maps a DLL or memory area into another process 16->38 40 Queues an APC in another process (thread injection) 16->40 19 tnOYURIKTf.exe 16->19 injected process9 process10 21 control.exe 13 19->21         started        signatures11 50 Tries to steal Mail credentials (via file / registry access) 21->50 52 Tries to harvest and steal browser information (history, passwords, etc) 21->52 54 Modifies the context of a thread in another process (thread injection) 21->54 56 Maps a DLL or memory area into another process 21->56 24 explorer.exe 1 1 21->24 injected 28 tnOYURIKTf.exe 21->28 injected process12 dnsIp13 32 www.blackgrow.info 203.161.53.83, 49741, 49742, 49743 VNPT-AS-VNVNPTCorpVN Malaysia 24->32 34 mydesigneredge.com 162.144.13.104, 49761, 49762, 49763 UNIFIEDLAYER-AS-1US United States 24->34 36 15 other IPs or domains 24->36 58 System process connects to network (likely due to code injection or exploit) 24->58 60 Performs DNS queries to domains with low reputation 24->60 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6b39391435f77016d7a9bb06c31345577faa06f44710e05bfc6ea15e7a47c027/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-09-15 12:50:55 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
25 of 37 (67.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=nm4tsfbv65ybnv5jxmdmge2fk572ubxui4ioaw74n2qv46shyatq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
16c15ef7330e3f3d1915b88ee65986e3c49ae85d26e87e11b2a2f0e7b9202626
Formbook
19bff37c5b894b30a3522a73a35387fce64f890b94745399c5e72e5bf9c46138
Formbook
51a15921691e898e879b022164f0cfd0cacdd2214116ac176dab7b9d124f8bc9
Formbook
619b74c414ceb8633539d653de1083cedd1643d16d0d3853773daa007fb43cc3
Formbook
874ee8f230f9d4ff0446d583f123f9822a34e990d57fcb235789c5bfbfebb73d
Formbook
c8122debaede9ed9ffba560e7a8367c38801bc6879c51abaaf628a3e176cf1e1
Formbook
fc563ce0d3583e88222493534f0f02d94ca9dab17c906c5deacf7132852b51b4
Formbook
+ 92 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230915-rln19afb96/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
0aec3cf9f16e0021c5670c5491211f303a8e391d8fe279285ecebfd51b2da7b0
MD5 hash:
4cd799e0c39c404113648518cff28aa2
SHA1 hash:
90c71c5827a2f0cc4723509d6f71ac2a640c938e
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/2d9d87d9-7714-4c8b-89a3-c9047c9558b7/
SH256 hash:
568a7da2bff42094514b3c8cda6ddbb35ee512c1555e6108bc4a8f1b0ca82f05
MD5 hash:
9c399b7c7da398a5912deba1b7712327
SHA1 hash:
8b914fe46df7335df48e5abf6cda0a668af17faf
Link:
https://www.unpac.me/results/2d9d87d9-7714-4c8b-89a3-c9047c9558b7/
SH256 hash:
d89917f867d5ee1bd968029708f140863348fca61047ea61f222d82fec93252d
MD5 hash:
2a98ea2d2b5015b37d1b6bc69fe2f86f
SHA1 hash:
6cc7890ff02f067340019fd467d7dfa4e3fceabd
Link:
https://www.unpac.me/results/2d9d87d9-7714-4c8b-89a3-c9047c9558b7/
SH256 hash:
6b39391435f77016d7a9bb06c31345577faa06f44710e05bfc6ea15e7a47c027
MD5 hash:
81d4c151a7aea2bb1adaadf2814d8984
SHA1 hash:
fd897ac1b6f58e721bbd2f9f6cc86bd34fcfa806
Link:
https://www.unpac.me/results/2d9d87d9-7714-4c8b-89a3-c9047c9558b7/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6b39391435f7/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/6b39391435f77016d7a9bb06c31345577faa06f44710e05bfc6ea15e7a47c027

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:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 6b39391435f77016d7a9bb06c31345577faa06f44710e05bfc6ea15e7a47c027

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/448864/

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