MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3938467f9676ae5d8907f3b10d5f7a34257f2981165feb61fefae8b6574451bc. 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



CobaltStrike


Vendor detections: 8


Intelligence 8 IOCs YARA 3 File information Comments 1

SHA256 hash: 3938467f9676ae5d8907f3b10d5f7a34257f2981165feb61fefae8b6574451bc
SHA3-384 hash: b6e0408ad5609003b5fef4895f381d866961da10691c9b018692553c43f49ce87b95f6afe34797902f1f822d94653038
SHA1 hash: 8eb35cdf76fea454db5712288364170aeafed6bf
MD5 hash: 00c4ac1e15f4245649512ea1b1c667fa
humanhash: comet-spaghetti-delaware-one
File name:flashplayerpp_install_cn.exe
Download: download sample
Signature CobaltStrike
File size:5'615'671 bytes
First seen:2021-04-21 10:40:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a2c1f4d5eeaf95bdec6a6d4cd9f09091 (3 x CobaltStrike)
ssdeep 98304:gRYZrsUT024Q64PbR75b5BdNPwuaOaFbFCe3/SCKynCxwKGQBxCtnGh7:lZrJzLfRPtw/SCHnCx6n
Threatray 35 similar samples on MalwareBazaar
TLSH A946338CC460DC61C22274B1A4336B77A375B07F1B736AED5F1429243A33B972E7958A
Reporter JAMESWT_WT
Tags:103.234.72.37 CobaltStrike

Intelligence


File Origin
# of uploads :
1
# of downloads :
583
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
flashplayerpp_install_cn.exe
Verdict:
No threats detected
Analysis date:
2021-04-21 10:42:35 UTC
Tags:
n/a

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

Behaviour
Creating a file in the %temp% subdirectories
Sending an HTTP GET request
Sending a UDP request
Launching the default Windows debugger (dwwin.exe)
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.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
troj
Score:
72 / 100
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Uses known network protocols on non-standard ports
Behaviour
Behavior Graph:
Threat name:
Win64.Trojan.Wacatac
Status:
Malicious
First seen:
2021-04-14 16:47:13 UTC
File Type:
PE+ (Exe)
Extracted files:
619
AV detection:
15 of 46 (32.61%)
Threat level:
  5/5
Result
Malware family:
cobaltstrike
Score:
  10/10
Tags:
family:cobaltstrike backdoor pyinstaller trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Loads dropped DLL
Cobaltstrike
Suspicious use of NtCreateProcessExOtherParentProcess
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:PE_File_pyinstaller
Author:Didier Stevens (https://DidierStevens.com)
Description:Detect PE file produced by pyinstaller
Reference:https://isc.sans.edu/diary/21057
Rule name:PyInstaller
Author:@bartblaze
Description:Identifies executable converted using PyInstaller.
Rule name:WinPayloads_Payload
Author:Florian Roth
Description:Detects WinPayloads Payload
Reference:https://github.com/nccgroup/Winpayloads

File information


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

Comments



Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-04-21 11:07:36 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0032.005] Data Micro-objective::Adler::Checksum
1) [C0060] Data Micro-objective::Compression Library
2) [C0026.002] Data Micro-objective::XOR::Encode Data
4) [C0046] File System Micro-objective::Create Directory
5) [C0048] File System Micro-objective::Delete Directory
6) [C0047] File System Micro-objective::Delete File
7) [C0051] File System Micro-objective::Read File
8) [C0052] File System Micro-objective::Writes File
9) [C0007] Memory Micro-objective::Allocate Memory
10) [C0034.001] Operating System Micro-objective::Set Variable::Environment Variable
11) [C0017] Process Micro-objective::Create Process
12) [C0018] Process Micro-objective::Terminate Process