MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 637e28b38086ff9efd1606805ff57aaf6cdec4537378f019d6070a5efdc9c983. 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


Threat unknown


Vendor detections: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 637e28b38086ff9efd1606805ff57aaf6cdec4537378f019d6070a5efdc9c983
SHA3-384 hash: 55a5412914ce761fcfc1e040a946f5e0fefcc2ff2b7dbce4a6b42076acfa66333383e685f9c96198eeed3d924c682417
SHA1 hash: 1cce67a2b76d3bcd85f158f533e55296b8aea592
MD5 hash: 9f1c1e45b292299818c7fe64c865e67a
humanhash: triple-batman-sink-xray
File name:637e28b38086ff9efd1606805ff57aaf6cdec4537378f019d6070a5efdc9c983
Download: download sample
File size:587'264 bytes
First seen:2023-07-10 09:23:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9d12b8a738fa9d477edc73ce72663075 (1 x Akira)
ssdeep 6144:8KIpz8gbJnHlZB1wYvPgwi/YkVlWGGv5wVRU/rCPED3xTfuRkbjaRVepohAYHdGZ:BGz7JHsYKN2v5/G+TfuR1VioyYHjS
TLSH T18BC47D09B6AC47F4D0A7C23CC9128506FAB6789913618BEF079087762F176E15F3EB61
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 pcrisk
Tags:exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
294
Origin country :
LT LT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
637e28b38086ff9efd1606805ff57aaf6cdec4537378f019d6070a5efdc9c983
Verdict:
Malicious activity
Analysis date:
2023-07-10 11:17:05 UTC
Tags:
stealer ransomware
Link:
https://app.any.run/tasks/f324cdd2-7b7f-40ac-b711-61ef8bd444f9

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/413447/
Detection(s):
Win.Ransomware.Akira-10004844-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Changing a file
Creating a file in the Program Files directory
Сreating synchronization primitives
Modifies multiple files
Modifying an executable file
Moving a recently created file
Creating a file in the Program Files subdirectories
Moving a file to the Program Files directory
Moving a file to the Program Files subdirectory
Creating a file in the mass storage device
Encrypting user's files
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/96848/overview
Behaviour
MalwareBazaar
MeasuringTime
CheckCmdLine
EvasionQueryPerformanceCounter
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm control crypto evasive expand explorer greyware lolbin
Link:
https://www.filescan.io/uploads/64abce33496aaa921ba32819/reports/253a1ba9-2d97-4428-8355-e006a83d5732/overview
Verdict:
Malicious
Labled as:
Ransom.Akira.A.Generic
Link:
https://www.hybrid-analysis.com/sample/637e28b38086ff9efd1606805ff57aaf6cdec4537378f019d6070a5efdc9c983
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:
Akira
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4fb2045d-03e1-4b95-b10b-ae2a15738217
Result
Threat name:
n/a
Detection:
malicious
Classification:
rans.spyw.evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1269563
Signature
Found Tor onion address
Multi AV Scanner detection for submitted file
Tries to harvest and steal browser information (history, passwords, etc)
Writes a notice file (html or txt) to demand a ransom
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/637e28b38086ff9efd1606805ff57aaf6cdec4537378f019d6070a5efdc9c983/
Threat name:
Win64.Ransomware.Akira
Create hunting rule
Status:
Malicious
First seen:
2023-07-06 08:23:40 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mn7crm4aq37z57iwa2af75l2v5wn5rcton4pagowa4ff57ojzgbq._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  9/10
Tags:
persistence ransomware spyware stealer
Link:
https://tria.ge/reports/230710-llj5eaae41/
Behaviour
Checks SCSI registry key(s)
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Drops file in Program Files directory
Drops desktop.ini file(s)
Enumerates connected drives
Reads user/profile data of web browsers
Modifies Installed Components in the registry
Modifies extensions of user files
Renames multiple (8558) files with added filename extension
Renames multiple (8591) files with added filename extension
Unpacked files
SH256 hash:
637e28b38086ff9efd1606805ff57aaf6cdec4537378f019d6070a5efdc9c983
MD5 hash:
9f1c1e45b292299818c7fe64c865e67a
SHA1 hash:
1cce67a2b76d3bcd85f158f533e55296b8aea592
Link:
https://www.unpac.me/results/69bae3fc-9da8-4b27-a960-f88fc917076b/
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
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/413447/

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