MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c91963b604f32bb0fb91c2dc8771cfb86ef5ecbebb145e3515bdf5779972455. 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



BazaLoader


Vendor detections: 7


Intelligence 7 IOCs YARA 2 File information Comments

SHA256 hash: 3c91963b604f32bb0fb91c2dc8771cfb86ef5ecbebb145e3515bdf5779972455
SHA3-384 hash: 036d01d1e0ec63a72a6e67b83564a765a3ec56f703c9059475f83c53530fb89670e3a03e96e8ac2346ebe9960d114919
SHA1 hash: 54f5a5954b1a0b422d760b46d4d51cddb5ebfaa3
MD5 hash: 025eeba54758fd573affc6cd34e18400
humanhash: oranges-three-ack-butter
File name:3c91963b604f32bb0fb91c2dc8771cfb86ef5ecbebb145e3515bdf5779972455
Download: download sample
Signature BazaLoader
File size:341'496 bytes
First seen:2021-01-29 15:13:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 39537d436ab7ebdcdf4e4744ccada41f (11 x BazaLoader)
ssdeep 6144:S+22i2CBlWNblbzlaszzNWV0k+0zLGwJhF3UdR7XZx5E:v6BlWfNWNKgPUr7XC
Threatray 96 similar samples on MalwareBazaar
TLSH 2974C017725534F9E72295354A50541CE3BB7C3D1A63DF9BC2213E982F362D01DFAA28
Reporter JAMESWT_WT
Tags:BazaLoader Foreground signed

Code Signing Certificate

Organisation:Certum Extended Validation Code Signing CA SHA2
Issuer:Certum Trusted Network CA
Algorithm:sha256WithRSAEncryption
Valid from:Oct 29 11:55:39 2015 GMT
Valid to:Jan 19 11:55:39 2027 GMT
Serial number: 4E96C1BA06258A0C2ABA27625E9064D3
Intelligence: 23 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: 176AAE8BDD5DD06A7DBD42862DC173BD838FFE3013103B097B9671C37BA6AE14
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
170
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://1117962392.rsc.cdn77.org/3Group/3/DocumentReview.exe
Verdict:
Suspicious activity
Analysis date:
2021-01-28 19:26:40 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
Changing a file
Sending a UDP request
DNS request
Launching a process
Creating a process with a hidden window
Sending a TCP request to an infection source
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Threat name:
Bazar Loader
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Signature
Allocates memory in foreign processes
Injects a PE file into a foreign processes
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Writes to foreign memory regions
Yara detected Bazar Loader
Behaviour
Behavior Graph:
Threat name:
Win64.Backdoor.Bazaarloader
Status:
Malicious
First seen:
2021-01-28 22:04:17 UTC
File Type:
PE+ (Exe)
Extracted files:
3
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
ransomware
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Suspicious use of NtCreateUserProcessOtherParentProcess
Unpacked files
SH256 hash:
3c91963b604f32bb0fb91c2dc8771cfb86ef5ecbebb145e3515bdf5779972455
MD5 hash:
025eeba54758fd573affc6cd34e18400
SHA1 hash:
54f5a5954b1a0b422d760b46d4d51cddb5ebfaa3
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_functions
Author:@j0sm1
Description:Detect functions coded with ROR edi,D; Detect CobaltStrike used by differents groups APT
Rule name:win_bazarbackdoor_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


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

Comments