MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 39b74b2fb057e8c78a2ba6639cf3d58ae91685e6ac13b57b70d2afb158cf742d. 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



Conti


Vendor detections: 9


Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash: 39b74b2fb057e8c78a2ba6639cf3d58ae91685e6ac13b57b70d2afb158cf742d
SHA3-384 hash: 77a53a0729b3089be6931766e748ad87a96b722f7cf6b850b102db001387532957afd4827536ba8bf8a9dae03fd34b12
SHA1 hash: be17c41c65703f9475e36dff55fd3de220e395f3
MD5 hash: 58aea2aac89947773dfae8e3859e20b0
humanhash: carpet-glucose-victor-king
File name:tmp1fltkf46
Download: download sample
Signature Conti
File size:707'584 bytes
First seen:2022-08-27 02:49:54 UTC
Last seen:2022-11-17 02:17:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 8649071454a1f3666a535bb853332eef (2 x Conti)
ssdeep 12288:i0iads6yn93ySQDWYgeWYg955/155/m6q5iKn3zMCO342FoqdXS:dicFyn93ySQJ5f34Jo2Fi
Threatray 2'317 similar samples on MalwareBazaar
TLSH T1E1E47C1BBAA911F8D0BBD03D89424526F7B27C1643619BCF13A00B6B5F676E48E3E351
TrID 48.7% (.EXE) Win64 Executable (generic) (10523/12/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Reporter 1ZRR4H
Tags:conti exe Ransomware

Intelligence


File Origin
# of uploads :
2
# of downloads :
667
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
220826-3bwtwscaa3_pw_infected.zip
Verdict:
No threats detected
Analysis date:
2022-08-27 23:10:03 UTC
Tags:
n/a

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

Behaviour
Searching for the window
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Launching the process to interact with network services
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
Creating a window
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Behaviour
MalwareBazaar
MeasuringTime
CheckCmdLine
EvasionQueryPerformanceCounter
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware
Result
Verdict:
SUSPICIOUS
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:
Conti, Voidcrypt
Detection:
malicious
Classification:
rans.evad
Score:
92 / 100
Signature
Antivirus / Scanner detection for submitted sample
Deletes shadow drive data (may be related to ransomware)
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Uses cmd line tools excessively to alter registry or file data
Uses net.exe to modify the status of services
Yara detected Conti ransomware
Yara detected Voidcrypt Ransomware
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 691250 Sample: tmp1fltkf46.exe Startdate: 27/08/2022 Architecture: WINDOWS Score: 92 48 Antivirus / Scanner detection for submitted sample 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Yara detected Voidcrypt Ransomware 2->52 54 3 other signatures 2->54 8 tmp1fltkf46.exe 5 2->8         started        10 tmp1fltkf46.exe 4 2->10         started        process3 signatures4 13 cmd.exe 1 8->13         started        16 cmd.exe 1 8->16         started        18 cmd.exe 1 8->18         started        20 conhost.exe 8->20         started        56 Injects code into the Windows Explorer (explorer.exe) 10->56 22 cmd.exe 1 10->22         started        24 cmd.exe 1 10->24         started        26 conhost.exe 10->26         started        process5 signatures6 58 Uses cmd line tools excessively to alter registry or file data 13->58 60 Uses net.exe to modify the status of services 13->60 28 reg.exe 1 1 13->28         started        30 tasklist.exe 1 16->30         started        32 tasklist.exe 1 16->32         started        34 tasklist.exe 1 16->34         started        42 25 other processes 16->42 36 net.exe 1 18->36         started        38 reg.exe 1 22->38         started        40 net.exe 1 24->40         started        process7 process8 44 net1.exe 1 36->44         started        46 net1.exe 1 40->46         started       
Threat name:
Win64.Backdoor.Zegost
Status:
Malicious
First seen:
2022-08-27 02:50:10 UTC
File Type:
PE+ (Exe)
Extracted files:
3
AV detection:
5 of 26 (19.23%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
persistence spyware stealer
Behaviour
Delays execution with timeout.exe
Enumerates processes with tasklist
Modifies registry key
Runs net.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Adds Run key to start application
Enumerates connected drives
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
39b74b2fb057e8c78a2ba6639cf3d58ae91685e6ac13b57b70d2afb158cf742d
MD5 hash:
58aea2aac89947773dfae8e3859e20b0
SHA1 hash:
be17c41c65703f9475e36dff55fd3de220e395f3
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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:pdb_YARAify
Author:@wowabiy314
Description:PDB

File information


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

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