MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a3af3d7e825daeffc05e34a784d686bb9f346d48a92c060e1e901c644398d5d7. 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: 9
| SHA256 hash: | a3af3d7e825daeffc05e34a784d686bb9f346d48a92c060e1e901c644398d5d7 |
|---|---|
| SHA3-384 hash: | de906b58871a58a43cdd2cce97babe5bae7707c261a26c936a35994838c4141df45a34320edcab47057f6f605a46d210 |
| SHA1 hash: | af8f9344a1ae56e0b83146f9a099e98d944b3be1 |
| MD5 hash: | 580c37831fe98a254eb6c61c692c70d8 |
| humanhash: | september-illinois-alaska-dakota |
| File name: | a3af3d7e825daeffc05e34a784d686bb9f346d48a92c060e1e901c644398d5d7.exe |
| Download: | download sample |
| Signature | CobaltStrike |
| File size: | 103'880 bytes |
| First seen: | 2021-02-25 17:35:59 UTC |
| Last seen: | 2021-02-25 19:56:12 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 4fbbe07b8fd7efc971f8490c490e323c (1 x CobaltStrike) |
| ssdeep | 1536:CyhABuQKhebJdlqsp6zTXI+wlICBcYsBUQ9lfu0K0FZheyIra8oigh7:uBuQKhmblqsIzDFMICf2lXFmrazn |
| Threatray | 288 similar samples on MalwareBazaar |
| TLSH | A0A3171ABC09CCBAD433E6F068DED975C6249D5CF272D097FF8B2F2869363006909569 |
| Reporter |  Rony |
| Tags: | CobaltStrike Nim |
Intelligence
File Origin
# of uploads :
2
# of downloads :
564
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a3af3d7e825daeffc05e34a784d686bb9f346d48a92c060e1e901c644398d5d7.exe
Verdict:
Malicious activity
Analysis date:
2021-02-25 17:36:37 UTC
Tags:
trojan meterpreter
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a custom TCP request
Sending a UDP request
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.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
n/a
Score:
52 / 100
Signature
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Swrort
Status:
Malicious
First seen:
2021-02-23 00:43:53 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cobaltstrike
Similar samples:
+ 278 additional samples on MalwareBazaar
Result
Malware family:
metasploit
Score:
10/10
Tags:
family:cobaltstrike family:metasploit backdoor trojan
Behaviour
Cobaltstrike
MetaSploit
Malware Config
C2 Extraction:
http://121.37.139.238:443/JMLy
http://121.37.139.238:443/ga.js
http://121.37.139.238:443/ga.js
Unpacked files
SH256 hash:
a3af3d7e825daeffc05e34a784d686bb9f346d48a92c060e1e901c644398d5d7
MD5 hash:
580c37831fe98a254eb6c61c692c70d8
SHA1 hash:
af8f9344a1ae56e0b83146f9a099e98d944b3be1
Please note that we are no longer able to provide a coverage score for Virus Total.
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_Sleep_Decoder_Indicator |
|---|---|
| Author: | yara@s3c.za.net |
| Description: | Detects CobaltStrike sleep_mask decoder |
| 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: | 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: | 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: | PowerShell_Susp_Parameter_Combo |
|---|---|
| Author: | Florian Roth |
| Description: | Detects PowerShell invocation with suspicious parameters |
| Reference: | https://goo.gl/uAic1X |
| Rule name: | ReflectiveLoader |
|---|---|
| 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 |
| Rule name: | win_cobalt_strike_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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