MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 37a042c1055f13e3b2b901d79a982adc1b771b9c8371a91e2b210d24931e75f8. 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: 8
| SHA256 hash: | 37a042c1055f13e3b2b901d79a982adc1b771b9c8371a91e2b210d24931e75f8 |
|---|---|
| SHA3-384 hash: | ac4586c2e64dd32f9a498106d6abfe0753439107373deeecc4d249eaedbf92481f8dc0fd31ac8d768b7d88feba59e1b1 |
| SHA1 hash: | a5b511cc6f5c15ac568dc8c67af32cc333e9ac49 |
| MD5 hash: | c001bae5592772d30e0878fc40ccb759 |
| humanhash: | sad-cold-pennsylvania-cat |
| File name: | tool.exe |
| Download: | download sample |
| Signature | CobaltStrike |
| File size: | 348'160 bytes |
| First seen: | 2021-07-08 18:43:56 UTC |
| Last seen: | 2021-07-09 01:02:43 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 27ca6f1b27f540e38f487efce4782e42 (3 x CobaltStrike, 1 x Dridex) |
| ssdeep | 6144:NlklsHqEpRXM3uJRKzYvpkJbH4EPlXL6G/R1ISf:3klEqSM3uJ1xk9YEPlXLVf |
| Threatray | 339 similar samples on MalwareBazaar |
| TLSH | T17F7412F4D6A148A8CD418AB1905AF3B72D554BF432848837FEC2DCBC48909D516BB7B7 |
| Reporter | Anonymous |
| Tags: | CobaltStrike exe |
Anonymous
E-mail subject: "Kaseya update information about incident xxxxxxx from response team."Intelligence
File Origin
# of uploads :
3
# of downloads :
528
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
tool.exe
Verdict:
Malicious activity
Analysis date:
2021-07-08 18:44:51 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:
UNKNOWN
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
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.PUA.CobaltStrikeBeacon
Status:
Malicious
First seen:
2021-07-08 13:26:56 UTC
AV detection:
10 of 29 (34.48%)
Threat level:
1/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cobaltstrike
Similar samples:
+ 329 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://193.239.84.213:80/j.ad
Unpacked files
SH256 hash:
d767c0a9584ad5dc64a86af6c9bd7023c3293d55f3197d7edceeee1ef85b18dd
MD5 hash:
478d6fc6a91a4d061da2eedc5c60ea40
SHA1 hash:
a0cd7794e61b998ba761e5185bff6b187e939d0a
SH256 hash:
777825ec69c916afe7fa8f4111867152288aa01d188b05a271bbe9be48b8936e
MD5 hash:
44e2312c6da5aeb137a9318ad1d588fb
SHA1 hash:
d99cbf145fcb8c92c04118d595af4cb9e2fa004e
SH256 hash:
37a042c1055f13e3b2b901d79a982adc1b771b9c8371a91e2b210d24931e75f8
MD5 hash:
c001bae5592772d30e0878fc40ccb759
SHA1 hash:
a5b511cc6f5c15ac568dc8c67af32cc333e9ac49
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.14
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: | DridexV4 |
|---|---|
| Author: | kevoreilly |
| Description: | Dridex v4 Payload |
| 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.
Delivery method
Distributed via e-mail link
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