MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 91c96360ae21df783a98ded6dca0cf027a1b1fdd7fbdd201fa56894ffb9f47a4. 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: 7
| SHA256 hash: | 91c96360ae21df783a98ded6dca0cf027a1b1fdd7fbdd201fa56894ffb9f47a4 |
|---|---|
| SHA3-384 hash: | cb77bb4d776b0f8af1f1234d6999af11a2c50c29df5bc12efede083759247575a8e23f6764a7004cade016a463c6e737 |
| SHA1 hash: | 708fe8f4c20558b9fd5c66f438f6d9a916c9c30b |
| MD5 hash: | 41d7eb38fd86e069dcc0057ac62b8860 |
| humanhash: | kitten-bulldog-potato-victor |
| File name: | 41d7eb38fd86e069dcc0057ac62b8860.dll |
| Download: | download sample |
| Signature | CobaltStrike |
| File size: | 284'160 bytes |
| First seen: | 2021-06-22 06:36:24 UTC |
| Last seen: | Never |
| File type: |  dll |
| MIME type: | application/x-dosexec |
| imphash | db502765cff159e5db66145a73cb6cd7 (7 x CobaltStrike) |
| ssdeep | 1536:5bmqSgsrY5QYGQ//xm7IHxzNSfSAf8iGRbvRihWq2/YkckNclf3E3rNcqjB:bSEQw/mIOfSAfnIRKWq2Jclf3kcqj |
| Threatray | 129 similar samples on MalwareBazaar |
| TLSH | 9C54BE66FD09CF14D00139F7834ADA113A1B365E7460496EBBBA85C22AC737BB3225D9 |
| Reporter |  abuse_ch |
| Tags: | CobaltStrike dll |
Intelligence
File Origin
# of uploads :
1
# of downloads :
503
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Detection(s):
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
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
evad.troj
Score:
96 / 100
Signature
Antivirus / Scanner detection for submitted sample
Contains functionality to detect sleep reduction / modifications
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: CobaltStrike Load by Rundll32
Tries to evade analysis by execution special instruction which cause usermode exception
Yara detected CobaltStrike
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.CobaltStrike
Status:
Malicious
First seen:
2021-06-22 03:05:20 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
cobaltstrike
Similar samples:
+ 119 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
1/10
Tags:
n/a
Behaviour
Suspicious use of WriteProcessMemory
Unpacked files
SH256 hash:
91c96360ae21df783a98ded6dca0cf027a1b1fdd7fbdd201fa56894ffb9f47a4
MD5 hash:
41d7eb38fd86e069dcc0057ac62b8860
SHA1 hash:
708fe8f4c20558b9fd5c66f438f6d9a916c9c30b
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
|---|---|
| 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: | CS_beacon |
|---|---|
| Author: | Etienne Maynier tek@randhome.io |
| Rule name: | HKTL_CobaltStrike_Beacon_4_2_Decrypt |
|---|---|
| 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 |
|---|---|
| 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: | Leviathan_CobaltStrike_Sample_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Cobalt Strike sample from Leviathan report |
| Reference: | https://goo.gl/MZ7dRg |
| Rule name: | Malware_QA_vqgk |
|---|---|
| Author: | Florian Roth |
| Description: | VT Research QA uploaded malware - file vqgk.dll |
| Reference: | VT Research QA |
| Rule name: | MALWARE_Win_CobaltStrike |
|---|---|
| Author: | ditekSHen |
| Description: | CobaltStrike payload |
| Rule name: | PowerShell_Susp_Parameter_Combo |
|---|---|
| Author: | Florian Roth |
| Description: | Detects PowerShell invocation with suspicious parameters |
| Reference: | https://goo.gl/uAic1X |
| Rule name: | Trojan_Win_Generic_101 |
|---|---|
| Author: | FireEye |
| Description: | Detects FireEye Windows trojan |
| 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 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects reflective loader (Cobalt Strike) used in Operation Wilted Tulip |
| Reference: | http://www.clearskysec.com/tulip |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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