MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a55dbb26705b65000f18861cc6878dd5b95288f43b2b7a18c1a5131279bfa9b2. 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: 13


Intelligence 13 IOCs YARA 27 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a55dbb26705b65000f18861cc6878dd5b95288f43b2b7a18c1a5131279bfa9b2
SHA3-384 hash: dec9eb1c0dc903988c4639b3a9a12d7d717b6e2b857360b9dd3b9f752d174d8fe4b56c1d70cbbfcf3be3463aade5c743
SHA1 hash: 14c0320b7254a4a48dab501d6ebb9619f84c4bf4
MD5 hash: 4e3b9f52407aa64c8048b8f67a2f7a93
humanhash: comet-mountain-uncle-red
File name:名单及清缴流程.exe
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:536'911 bytes
First seen:2022-06-09 07:48:18 UTC
Last seen:2022-06-09 08:48:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash a20442df2e94d5def90d1831ad81a4aa (1 x CobaltStrike)
ssdeep 6144:DrbUv+5dza7ALmvWwGGiAPbS7BhxC0xlacudWWimmVmia7FKQva8NTVolud1:i+5d+m9J6G7X40uvXyvqF9vX2ud1
Threatray 259 similar samples on MalwareBazaar
TLSH T104B4B6C07B05ECB7FA84A674109112367E9EB5D2F7CA859F349CEE2D00275B898F1D1A
TrID 43.3% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
27.5% (.EXE) Win64 Executable (generic) (10523/12/4)
13.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) OS/2 Executable (generic) (2029/13)
5.2% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon 74f4ecc4caccc4dc (6 x AveMariaRAT, 6 x Gamaredon, 1 x CobaltStrike)
Reporter obfusor
Tags:CobaltStrike exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
718
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
名单及清缴流程.exe
Verdict:
No threats detected
Analysis date:
2022-06-09 07:53:33 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7d85379d-09dc-41c7-8597-037d0caa7a75

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
CobaltStrike
Create hunting rule
Link:
https://www.capesandbox.com/analysis/278097/
Detection(s):
SecuriteInfo.com.DeepScan.Generic.Exploit.Shellcode.2.F332A269.20344.12143.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Sending an HTTP GET request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-debug overlay spyeye
Link:
https://www.filescan.io/uploads/62a1a608bea023f99d89acce/reports/b216006d-f73d-4ecc-94a9-0cfa48c42751/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.
Malware family:
Cobalt Strike
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c5c49a4a-9d78-426f-a710-def4c573e647
Result
Threat name:
CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1009763
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Found API chain indicative of debugger detection
Found potential dummy code loops (likely to delay analysis)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a55dbb26705b65000f18861cc6878dd5b95288f43b2b7a18c1a5131279bfa9b2/
Threat name:
Win64.Backdoor.CobaltStrikeBeacon
Create hunting rule
Status:
Malicious
First seen:
2022-06-09 07:49:11 UTC
File Type:
PE+ (Exe)
Extracted files:
48
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uvo3wjtqlnsqadyyqyomnb4n2w4vfchuhmvxuggbuujre6n7vgza._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
Similar samples:
2fe7b81253f7726822e0f6ff1a3bacea73ca2356ca4dcb460493586629961ad0
CobaltStrike
496af0522abd6667a524a45cd7f5488d9d2c0c4657bb48f3c42237bd3d4ef233
CobaltStrike
b107545a730cd8a999d58daac31c59e20c12219c7d999ad05987c5cae0602851
CobaltStrike
d3c07ceb0ca4710adc66bee177fd0ec160b14b4c7c059e680ab4324b455bb08d
CobaltStrike
d7782d882376d64085dcc1fc3e85030da3c37201922a9a73ca04b1b1f7957257
CobaltStrike
e98ad2d7da9c7fe8e1e3e399c5e32b3c5b698156d413605c3e62c518acfec697
CobaltStrike
+ 249 additional samples on MalwareBazaar
Result
Malware family:
cobaltstrike
Create hunting rule
Score:
  10/10
Tags:
family:cobaltstrike botnet:0 backdoor suricata trojan
Link:
https://tria.ge/reports/220609-jnnt9sbcej/
Behaviour
Program crash
Cobaltstrike
suricata: ET MALWARE Cobalt Strike Beacon Observed
suricata: ET MALWARE Successful Cobalt Strike Shellcode Download (x64) M1
Malware Config
C2 Extraction:
http://114.117.0.225:80/s3nI
Unpacked files
SH256 hash:
a55dbb26705b65000f18861cc6878dd5b95288f43b2b7a18c1a5131279bfa9b2
MD5 hash:
4e3b9f52407aa64c8048b8f67a2f7a93
SHA1 hash:
14c0320b7254a4a48dab501d6ebb9619f84c4bf4
Link:
https://www.unpac.me/results/4fcd062b-3d7e-40f3-a1e6-921741179389/
Malware family:
CobaltStrike
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a55dbb26705b/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/a55dbb26705b65000f18861cc6878dd5b95288f43b2b7a18c1a5131279bfa9b2

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:Beacon_K5om
Create hunting rule
Author:Florian Roth
Description:Detects Meterpreter Beacon - file K5om.dll
Reference:https://www.fireeye.com/blog/threat-research/2017/06/phished-at-the-request-of-counsel.html
Rule name:Beacon_K5om_RID2B14
Create hunting rule
Author:Florian Roth
Description:Detects Meterpreter Beacon - file K5om.dll
Reference:https://www.fireeye.com/blog/threat-research/2017/06/phished-at-the-request-of-counsel.html
Rule name:Cobaltbaltstrike_Beacon_x64
Create hunting rule
Author:Avast Threat Intel Team
Description:Detects CobaltStrike payloads
Reference:https://github.com/avast/ioc
Rule name:CobaltStrikeBeacon
Create hunting rule
Author:ditekshen, enzo & Elastic
Description:Cobalt Strike Beacon Payload
Rule name:CobaltStrike_C2_Encoded_XOR_Config_Indicator
Create hunting rule
Author:yara@s3c.za.net
Description:Detects CobaltStrike C2 encoded profile configuration
Rule name:CobaltStrike_MZ_Launcher
Create hunting rule
Author:yara@s3c.za.net
Description:Detects CobaltStrike MZ header ReflectiveLoader launcher
Rule name:CobaltStrike_ReflectiveLoader_RID3297
Create hunting rule
Author:Florian Roth
Description:Detects reflective loader (Cobalt Strike)
Reference:http://www.clearskysec.com/tulip
Rule name:CobaltStrike_Sleep_Decoder_Indicator
Create hunting rule
Author:yara@s3c.za.net
Description:Detects CobaltStrike sleep_mask decoder
Rule name:CobaltStrike_Unmodifed_Beacon
Create hunting rule
Author:yara@s3c.za.net
Description:Detects unmodified CobaltStrike beacon DLL
Rule name:crime_win32_csbeacon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Cobalt Strike loader
Reference:https://twitter.com/VK_Intel/status/1239632822358474753
Rule name:HKTL_CobaltStrike_Beacon_4_2_Decrypt
Create hunting rule
Author:Elastic
Description:Identifies deobfuscation routine used in Cobalt Strike Beacon DLL version 4.2
Reference:https://www.elastic.co/blog/detecting-cobalt-strike-with-memory-signatures
Rule name:HKTL_CobaltStrike_Beacon_Strings
Create hunting rule
Author:Elastic
Description:Identifies strings used in Cobalt Strike Beacon DLL
Reference:https://www.elastic.co/blog/detecting-cobalt-strike-with-memory-signatures
Rule name:HKTL_Meterpreter_inMemory
Create hunting rule
Author:netbiosX, Florian Roth
Description:Detects Meterpreter in-memory
Reference:https://www.reddit.com/r/purpleteamsec/comments/hjux11/meterpreter_memory_indicators_detection_tooling/
Rule name:HKTL_Win_CobaltStrike
Create hunting rule
Author:threatintel@volexity.com
Description:The CobaltStrike malware family.
Reference:https://www.volexity.com/blog/2021/05/27/suspected-apt29-operation-launches-election-fraud-themed-phishing-campaigns/
Rule name:INDICATOR_SUSPICIOUS_ReflectiveLoader
Create hunting rule
Author:ditekSHen
Description:detects Reflective DLL injection artifacts
Rule name:Leviathan_CobaltStrike_Sample_1
Create hunting rule
Author:Florian Roth
Description:Detects Cobalt Strike sample from Leviathan report
Reference:https://goo.gl/MZ7dRg
Rule name:Leviathan_CobaltStrike_Sample_1_RID3324
Create hunting rule
Author:Florian Roth
Description:Detects Cobalt Strike sample from Leviathan report
Reference:https://goo.gl/MZ7dRg
Rule name:malware_CobaltStrike_v3v4
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect CobaltStrike Beacon in memory
Reference:https://blogs.jpcert.or.jp/en/2018/08/volatility-plugin-for-detecting-cobalt-strike-beacon.html
Rule name:Malware_QA_vqgk
Create hunting rule
Author:Florian Roth
Description:VT Research QA uploaded malware - file vqgk.dll
Reference:VT Research QA
Rule name:MALWARE_Win_CobaltStrike
Create hunting rule
Author:ditekSHen
Description:CobaltStrike payload
Rule name:MALW_cobaltrike
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Rule to detect CobaltStrike beacon
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.cobalt_strike
Rule name:PowerShell_Susp_Parameter_Combo
Create hunting rule
Author:Florian Roth
Description:Detects PowerShell invocation with suspicious parameters
Reference:https://goo.gl/uAic1X
Rule name:PowerShell_Susp_Parameter_Combo_RID336F
Create hunting rule
Author:Florian Roth
Description:Detects PowerShell invocation with suspicious parameters
Reference:https://goo.gl/uAic1X
Rule name:ReflectiveLoader
Create hunting rule
Author:Florian Roth
Description:Detects a unspecified hack tool, crack or malware using a reflective loader - no hard match - further investigation recommended
Reference:Internal Research
Rule name:Trojan_Raw_Generic_4
Create hunting rule
Author:FireEye
Reference:https://www.fireeye.com/blog/products-and-services/2020/12/fireeye-shares-details-of-recent-cyber-attack-actions-to-protect-community.html
Rule name:WiltedTulip_ReflectiveLoader
Create hunting rule
Author:Florian Roth
Description:Detects reflective loader (Cobalt Strike) used in Operation Wilted Tulip
Reference:http://www.clearskysec.com/tulip
Rule name:win_cobalt_strike_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.cobalt_strike.

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/278097/

Comments