MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 44f521e2ef1f597a2ed34331cf77f497442444a50a0193b508f4c9061799486d. 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: | 44f521e2ef1f597a2ed34331cf77f497442444a50a0193b508f4c9061799486d |
|---|---|
| SHA3-384 hash: | 20768407677cf7d6e2b1bfa16fe7af963aa13e04dd9f3b60499ad4e240358156e522150f998e3877d482a3352d85bb86 |
| SHA1 hash: | 54cd21444dc6f1be76646459c6b8543dbff0875d |
| MD5 hash: | 1f8438573e8b5623be72c498c7da8869 |
| humanhash: | october-glucose-paris-neptune |
| File name: | Outlook.exe |
| Download: | download sample |
| Signature | CobaltStrike |
| File size: | 2'893'968 bytes |
| First seen: | 2021-07-21 12:32:16 UTC |
| Last seen: | 2021-07-21 14:05:48 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 1cd364a9e949d5ecebd6c614e64bc545 (16 x Glupteba, 10 x Snatch, 6 x CobaltStrike) |
| ssdeep | 49152:vQw61ATC4Cpp7y4WzUHCwMaMxft29pSggFpUiDZ64Ty:QECTeFz3u |
| Threatray | 165 similar samples on MalwareBazaar |
| TLSH | T1C6D57C52FCE209BEC57DF130459297217A7234A943337B932E8456A90B7ABE43E3E354 |
| Reporter |  James_inthe_box |
| Tags: | CobaltStrike exe signed |
Code Signing Certificate
| Organisation: | microsoft.com |
|---|---|
| Issuer: | Microsoft RSA TLS CA 01 |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2021-02-10T03:42:54Z |
| Valid to: | 2022-02-10T03:42:54Z |
| Serial number: | 6b0008bbd5eb53f5d9e616c3ed00000008bbd5 |
| Intelligence: | 2 malware samples on MalwareBazaar are signed with this code signing certificate |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 5d20cd04d332ef2124cd129d94a19e5f56b9105ef140845b8c510b2473ec5a90 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
512
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Outlook.exe
Verdict:
No threats detected
Analysis date:
2021-07-21 12:33:09 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
CobaltStrike
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
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Uses known network protocols on non-standard ports
Yara detected CobaltStrike
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Detection:
cobaltstrike
Threat name:
Win64.Trojan.CobaltStrike
Status:
Malicious
First seen:
2021-07-20 10:09:30 UTC
File Type:
PE+ (Exe)
AV detection:
14 of 46 (30.43%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cobaltstrike
Similar samples:
+ 155 additional samples on MalwareBazaar
Result
Malware family:
cobaltstrike
Score:
10/10
Tags:
family:cobaltstrike botnet:0 backdoor trojan
Behaviour
Cobaltstrike
Unpacked files
SH256 hash:
44f521e2ef1f597a2ed34331cf77f497442444a50a0193b508f4c9061799486d
MD5 hash:
1f8438573e8b5623be72c498c7da8869
SHA1 hash:
54cd21444dc6f1be76646459c6b8543dbff0875d
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.23
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: | GoBinTest |
|---|
| Rule name: | golang |
|---|
| 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_KB_CERT_6b0008bbd5eb53f5d9e616c3ed00000008bbd5 |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables signed with stolen, revoked or invalid certificates |
| Rule name: | INDICATOR_SUSPICIOUS_ReflectiveLoader |
|---|---|
| Author: | ditekSHen |
| Description: | detects Reflective DLL injection artifacts |
| 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: | MALW_cobaltrike |
|---|---|
| Author: | Marc Rivero | McAfee ATR Team |
| Description: | Rule to detect CobaltStrike beacon |
| 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: | WiltedTulip_ReflectiveLoader |
|---|---|
| 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 |
|---|---|
| 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.
Delivery method
Other
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