MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a7753f21e2c304d33a8ce823f0cf61de8c43f906c172dd69414d82da6a50ead. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a7753f21e2c304d33a8ce823f0cf61de8c43f906c172dd69414d82da6a50ead
SHA3-384 hash: de460de195f17468e145dc50615d8fbec38d6b90cec93c16a50dc52a07ada2c0d89ea48aeda3461f66c880e40d79cb07
SHA1 hash: 79860fbbf7f3f2e0e2399f23e9acd15954442375
MD5 hash: 8b5ad07e4d0736bec6f642d744b013fb
humanhash: stairway-avocado-alaska-stream
File name:flashplayerpp_install_cn.exe
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:2'695'006 bytes
First seen:2022-03-16 12:13:06 UTC
Last seen:2022-04-20 10:24:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 49152:/bA3dy0o/9WUddRC8qOZHXtsa+khuq1Ik+j0JpzJPXqROi9f1N+b7ioDG56e+:/bnz/9WmC8qOZCkT1IkFJ5B6T9f1APrv
Threatray 1'583 similar samples on MalwareBazaar
TLSH T1B9C52302EBD8D9B1C1223DB23842B729567D3A301F24CB9F9F989D58DD385C2A734A57
File icon (PE):PE icon
dhash icon c8c49aa9acd6ea86 (3 x CobaltStrike, 1 x Arechclient2, 1 x BadRabbit)
Reporter JAMESWT_WT
Tags:CobaltStrike exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
624
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
flashplayerpp_install_cn.exe
Verdict:
Malicious activity
Analysis date:
2022-03-16 12:13:26 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b34bb520-31fd-48a6-bed3-ece834eb1dcc

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/251395/
Detection(s):
SecuriteInfo.com.Trojan.Rasftuby.Gen.14.10239.27368.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% directory
Creating a process from a recently created file
DNS request
Sending an HTTP GET request
Creating a file
Sending a custom TCP request
Changing a file
Launching the default Windows debugger (dwwin.exe)
Moving a recently created file
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/9450/overview
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
80%
Tags:
greyware overlay packed setupapi.dll shdocvw.dll shell32.dll shelma update.exe
Link:
https://www.filescan.io/uploads/6231d4a7b94fb38cb48e2dd6/reports/6a7f6b3f-29ca-4b10-8d2d-801361082251/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dccc9bfe-bbfd-474c-909f-a0ed8bdb810c
Result
Threat name:
CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/957919
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
PE file has a writeable .text section
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4a7753f21e2c304d33a8ce823f0cf61de8c43f906c172dd69414d82da6a50ead/
Threat name:
Win32.Backdoor.CobaltStrikeBeacon
Create hunting rule
Status:
Malicious
First seen:
2022-03-11 17:13:35 UTC
File Type:
PE (Exe)
Extracted files:
418
AV detection:
19 of 27 (70.37%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
2054c3ef530c59f98144021367033dabf8e2201c11ca12d270fb28e36754c22f
CobaltStrike
4e591ca9530450eca3c227d9292c3496d54d022c83d8b9c5372d91b97fed3203
CobaltStrike
ae260cc9c23cd1d8b4b33d9a7372cd8c34ca40124502228a988d57c279c50280
CobaltStrike
b2e7eea64a4e8e56b43cf70b5b383ce06b0d43757d143a95b31ea9c8db6ac5a2
CobaltStrike
c786f20d3e96a3c55f01d4c6b63b08f8b45bb4799303a15eaf0086e4d2ae87e6
CobaltStrike
d00de0e51425c7c5ac7fe5790a5f13baceef07db80aa43771efd4926347541d3
CobaltStrike
f6b6afd931310b0930205d346b057acc1879a88acff36c460bb1b459e5f7cd79
CobaltStrike
+ 1'573 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/220316-pebq8sdec8/
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Enumerates physical storage devices
Unpacked files
SH256 hash:
8f3d69599b3a0457a27f2496c6d4ce3d02d849bbf921acf7362c1a76d53ec53a
MD5 hash:
6324d0313b83e493b943255d2a548f08
SHA1 hash:
bda8c517a209de09700f7127bf9d66c99df0f3c6
Link:
https://www.unpac.me/results/9ffd2da3-cbd7-43a3-bd2f-26c2fe6f9904/
SH256 hash:
7e2659a592afb406339daf97963ccf1e5538c7e3ca153bead4dd5e0c88ec66f0
MD5 hash:
6640a765f8b15cefbb35ec30e8609680
SHA1 hash:
b9dfaa732bc23a97f30d0778947ac96bf022317a
Link:
https://www.unpac.me/results/9ffd2da3-cbd7-43a3-bd2f-26c2fe6f9904/
SH256 hash:
4a7753f21e2c304d33a8ce823f0cf61de8c43f906c172dd69414d82da6a50ead
MD5 hash:
8b5ad07e4d0736bec6f642d744b013fb
SHA1 hash:
79860fbbf7f3f2e0e2399f23e9acd15954442375
Link:
https://www.unpac.me/results/9ffd2da3-cbd7-43a3-bd2f-26c2fe6f9904/
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/4a7753f21e2c304d33a8ce823f0cf61de8c43f906c172dd69414d82da6a50ead

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address

File information

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

Web download

CobaltStrike

Executable exe 4a7753f21e2c304d33a8ce823f0cf61de8c43f906c172dd69414d82da6a50ead

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/251395/
  
URLhaus
https://urlhaus.abuse.ch/url/2100184/
  
Delivery method
Distributed via web download

Comments