MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b640c53e2c02f08aa8ca3db62c628abcaa1694ffec33a59d69d88f5e2d1552aa. 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


Cobalt Strike


Vendor detections: 17


Intelligence 17 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b640c53e2c02f08aa8ca3db62c628abcaa1694ffec33a59d69d88f5e2d1552aa
SHA3-384 hash: a8a3c6f83398035d7d774bd20132f7814c2337da93d25b156c96455b2cd3b1b75d0cff3f19bc4bda56c54b0c9e9429ff
SHA1 hash: b5f0f1bbe80a8ffced6285b6176c74d3ff9f98d5
MD5 hash: dcc076d82ee3a43c1a3b49acbc0e62ee
humanhash: happy-monkey-december-nuts
File name:aes_loader.vmp.exe
Download: download sample
Signature Cobalt Strike
Create hunting rule
File size:11'503'104 bytes
First seen:2026-02-16 08:44:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 23dd3e1ff8e106594fea610965156a95 (1 x Cobalt Strike)
ssdeep 196608:YIv2B4VMxc3U86j+gFOI/R+kbOG7XGIDdJ0cHM8OCFeSSNUs:5vpac3UsgFjbOG7XPJ7TZ
Threatray 115 similar samples on MalwareBazaar
TLSH T1A6C622EE57E8A3B4C49256402587039674C1BA0D81FE4D657ECB2D06B614CAF248FFFA
TrID 33.1% (.EXE) Win64 Executable (generic) (6522/11/2)
25.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.4% (.ICL) Windows Icons Library (generic) (2059/9)
10.3% (.EXE) OS/2 Executable (generic) (2029/13)
10.1% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter Ling
Tags:Cobalt Strike CobaltStrike exe Malgent Trojan:Win32/Malgent!MSR VMProtect


Avatar
CNGaoLing
CobaltStrike & VMProtect

This sample has been reviewed by Microsoft researchers and determined to be malware. (Trojan:Win32/Malgent!MSR)

Intelligence

File Origin
# of uploads :
1
# of downloads :
176
Origin country :
US US
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/421dfbee-33b4-427e-8c00-4e0c8c827c25/
Malware family:
cobaltstrike
Create hunting rule
ID:
1
File name:
aes_loader.vmp.exe
Verdict:
Malicious activity
Analysis date:
2026-02-16 06:30:37 UTC
Tags:
cobaltstrike
Link:
https://app.any.run/tasks/c94dee81-0bb1-42b7-8599-7cabb7102c0b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
CobaltStrikeBeacon
Create hunting rule
Link:
https://www.capesandbox.com/analysis/53400/
Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6992d9440d0369ff9979d89c
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
hacktool masquerade packed
Link:
https://www.filescan.io/uploads/6992d927930564ff3ca321c9/reports/8829b55e-8e35-4327-8423-021c52d63cdf/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/b640c53e2c02f08aa8ca3db62c628abcaa1694ffec33a59d69d88f5e2d1552aa
Verdict:
Malicious
File Type:
exe x64
Detections:
Trojan.Win64.Cobalt.sb Trojan.Win32.CobaltStrike.sb Trojan.Win32.CobaltStrike.nuo
Link:
https://opentip.kaspersky.com/b640c53e2c02f08aa8ca3db62c628abcaa1694ffec33a59d69d88f5e2d1552aa/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ac93587d-8983-4ffa-97f8-65eea55393c9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b640c53e2c02f08aa8ca3db62c628abcaa1694ffec33a59d69d88f5e2d1552aa
Verdict:
inconclusive
YARA:
3 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/dcc076d82ee3a43c1a3b49acbc0e62ee
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b640c53e2c02f08aa8ca3db62c628abcaa1694ffec33a59d69d88f5e2d1552aa/
Verdict:
Malicious
Threat:
Family.COBALTSTRIKE
Link:
https://tip.neiki.dev/file/b640c53e2c02f08aa8ca3db62c628abcaa1694ffec33a59d69d88f5e2d1552aa
Threat name:
Win64.Backdoor.Cobeacon
Create hunting rule
Status:
Malicious
First seen:
2026-02-16 09:01:51 UTC
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wzamkprmalyivkgkhw3cyyukxsvbnfh75qz2lhlj3chv4livkkva._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
Similar samples:
0adfe8dab1b4339ffe2f36fadc728ebecf67dbc6077d2b62811ca4f60753ee70
Cobalt Strike
46196f889bde8f7d74dab2eda145215ac33eb4451aab8705d71bd6ea3c20988c
Cobalt Strike
5bcef00c270c39cbe34fab65226ca6e442e99dc4e0d42e6a5c1039c105ffa95f
Cobalt Strike
64db468d9c3d860ef9f014b1b7020a1089249eb169220cc3bd3018f232b992aa
Cobalt Strike
error
Cobalt Strike
fcf2dfb4bbc60cfcf233616f5b995859d233dc46c108bbce16c49dec186e6416
Cobalt Strike
+ 105 additional samples on MalwareBazaar
Result
Malware family:
cobaltstrike
Create hunting rule
Score:
  10/10
Tags:
family:cobaltstrike botnet:100000000 backdoor trojan
Link:
https://tria.ge/reports/260216-kny6nsat8c/
Behaviour
Suspicious behavior: EnumeratesProcesses
Cobaltstrike
Cobaltstrike family
Malware Config
C2 Extraction:
http://192.168.252.139:80/kunkun/jquery-3.3.1.min.js
Unpacked files
SH256 hash:
b640c53e2c02f08aa8ca3db62c628abcaa1694ffec33a59d69d88f5e2d1552aa
MD5 hash:
dcc076d82ee3a43c1a3b49acbc0e62ee
SHA1 hash:
b5f0f1bbe80a8ffced6285b6176c74d3ff9f98d5
Link:
https://www.unpac.me/results/55d81bc7-0010-44fb-843a-3e29ec46cee2/
Malware family:
CobaltStrike
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b640c53e2c02/report/overview.html
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/b640c53e2c02f08aa8ca3db62c628abcaa1694ffec33a59d69d88f5e2d1552aa

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset

File information

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

Web download

Cobalt Strike

Executable exe b640c53e2c02f08aa8ca3db62c628abcaa1694ffec33a59d69d88f5e2d1552aa

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/53400/

Comments