MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 6c91d046466c2770fede4f82714807bbd672bc60ca7453c6f968ece50bdb33ef. 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
| SHA256 hash: | 6c91d046466c2770fede4f82714807bbd672bc60ca7453c6f968ece50bdb33ef |
|---|---|
| SHA3-384 hash: | 691de2a31a3750effe01ad63a51a76e1ff092851bb7a98facabd70e99afd8cdcf4fa5cacf7cb2ae1540adbdf238f68b8 |
| SHA1 hash: | fe18adbd5b2d355bc2bcfb8075aad52dabe61763 |
| MD5 hash: | 592a4ee24af91370b593df09aa0d5bc4 |
| humanhash: | black-item-georgia-mountain |
| File name: | updatekaseya.exe |
| Download: | download sample |
| Signature | CobaltStrike |
| File size: | 348'160 bytes |
| First seen: | 2021-07-12 16:36:22 UTC |
| Last seen: | 2021-07-12 17:45:14 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 374af62d729377b70fa34449caa41796 (1 x CobaltStrike) |
| ssdeep | 6144:oBiyWWXUp4dM2Hfge2bIhvzkJ6/ASRESXptD1wPZRwtl2DmS0YWgX:aPUpCM2pkIdkdSRNXJwPZGl2F0YJ |
| Threatray | 353 similar samples on MalwareBazaar |
| TLSH | T1197412E3D794A06BC04757B1083BE6FB7A075A32778AE67BCE80418444308E995B9F77 |
| Reporter |  malwarelabnet |
| Tags: | CobaltStrike exe |
Intelligence
File Origin
# of uploads :
2
# of downloads :
514
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
updatekaseya.exe
Verdict:
Malicious activity
Analysis date:
2021-07-09 19:32:58 UTC
Tags:
trojan cobaltstrike
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
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:
CobaltStrike
Verdict:
Malicious
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Tries to detect sandboxes / dynamic malware analysis system (file name check)
Tries to detect virtualization through RDTSC time measurements
Yara detected CobaltStrike
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Bsymem
Status:
Malicious
First seen:
2021-07-09 18:21:37 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
cobaltstrike
Similar samples:
+ 343 additional samples on MalwareBazaar
Result
Malware family:
cobaltstrike
Score:
10/10
Tags:
family:cobaltstrike botnet:1359593325 backdoor trojan
Behaviour
Cobaltstrike
Malware Config
C2 Extraction:
http://23.254.211.213:80/pixel
Unpacked files
SH256 hash:
771c053334ab112c5ea1d92263abd3a192ec728992cc1bb63d650f55d31f9bb2
MD5 hash:
1b08b59eadab10ad3d27afe32193db5b
SHA1 hash:
9265b7f114e12a40e8050a37ceeb28290acb0329
SH256 hash:
52c870d7cccd4c13b2a2c536dd9c3733878dac6bd5afc85d3ff41df4624932b6
MD5 hash:
3586d3f10a4fb708a2f7abe68dbe4472
SHA1 hash:
135a70653e6f224710d2360c96c080cb3b6dbb75
SH256 hash:
6c91d046466c2770fede4f82714807bbd672bc60ca7453c6f968ece50bdb33ef
MD5 hash:
592a4ee24af91370b593df09aa0d5bc4
SHA1 hash:
fe18adbd5b2d355bc2bcfb8075aad52dabe61763
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: | CobaltStrikeBeacon |
|---|---|
| Author: | enzo |
| Description: | Cobalt Strike Beacon Payload |
| Rule name: | CobaltStrike_Unmodifed_Beacon |
|---|---|
| Author: | yara@s3c.za.net |
| Description: | Detects unmodified CobaltStrike beacon DLL |
| Rule name: | crime_win32_csbeacon_1 |
|---|---|
| Author: | @VK_Intel |
| Description: | Detects Cobalt Strike loader |
| Reference: | https://twitter.com/VK_Intel/status/1239632822358474753 |
| 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: | HKTL_Meterpreter_inMemory |
|---|---|
| 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 |
|---|---|
| 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 |
|---|---|
| Author: | ditekSHen |
| Description: | detects Reflective DLL injection artifacts |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| 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: | ReflectiveLoader |
|---|---|
| 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: | SUSP_XORed_Mozilla |
|---|---|
| Author: | Florian Roth |
| Description: | Detects suspicious XORed keyword - Mozilla/5.0 |
| Reference: | Internal Research |
| 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.
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.