MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 37f9c8afe825007690994399d745c4e2b6142d56539c8f8dc3f004131a5c453f. 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: 11
| SHA256 hash: | 37f9c8afe825007690994399d745c4e2b6142d56539c8f8dc3f004131a5c453f |
|---|---|
| SHA3-384 hash: | c9b068f85ea3068467c6ee21b7b90ce1e083f1379c399db3d1ffd7b1e4fdeddb7c75e09c202aa97eb8ef42ddca6d3f02 |
| SHA1 hash: | 5312342bb7421e2a58284e213b2e2b9f1e929fb3 |
| MD5 hash: | 8eb70104fe60be1bb677ad7b7cd3e145 |
| humanhash: | batman-island-berlin-blue |
| File name: | winword.exe |
| Download: | download sample |
| Signature | CobaltStrike |
| File size: | 343'096 bytes |
| First seen: | 2022-05-10 13:13:17 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 9aebf3da4677af9275c461261e5abde3 (25 x YTStealer, 12 x CobaltStrike, 11 x Hive) |
| ssdeep | 3072:c+G8U1IIWsl5n3bDAzChc6BjqXWeU/VIXqZruvvRuaIComTagrkT:c+G8FMngzCO6gGehGru/I6WxT |
| Threatray | 2'676 similar samples on MalwareBazaar |
| TLSH | T1F47472C66BB2DF2BF94C30F2D128F4729D1CBE610DE3BA4399F8759E44769125B440A2 |
| TrID | 56.1% (.EXE) UPX compressed Win64 Executable (70117/5/12) 21.6% (.EXE) UPX compressed Win32 Executable (27066/9/6) 13.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 4.0% (.EXE) Win16 NE executable (generic) (5038/12/1) 1.6% (.EXE) OS/2 Executable (generic) (2029/13) |
| Reporter |  JAMESWT_WT |
| Tags: | CobaltStrike exe signed |
Code Signing Certificate
| Organisation: | NVIDIA Corporation |
|---|---|
| Issuer: | VeriSign Class 3 Code Signing 2010 CA |
| Algorithm: | sha1WithRSAEncryption |
| Valid from: | 2011-09-02T00:00:00Z |
| Valid to: | 2014-09-01T23:59:59Z |
| Serial number: | 43bb437d609866286dd839e1d00309f5 |
| Intelligence: | 14 malware samples on MalwareBazaar are signed with this code signing certificate |
| MalwareBazaar Blocklist: | This certificate is on the MalwareBazaar code signing certificate blocklist (CSCB) |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 21c13d0a5037ebb97eb9ae094d8d5839b4bc9bba751c848064c82ec3a42a3134 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
692
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
winword.exe
Verdict:
Malicious activity
Analysis date:
2022-05-10 13:14:09 UTC
Tags:
cobalt trojan
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
Searching for the window
Enabling the 'hidden' option for analyzed file
DNS request
Sending an HTTP GET request
Launching the default Windows debugger (dwwin.exe)
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-debug overlay packed rozena shelma
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.
Verdict:
Malicious
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
troj
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Uses known network protocols on non-standard ports
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Threat name:
Win64.Backdoor.CobaltStrikeBeacon
Status:
Malicious
First seen:
2022-05-09 15:06:45 UTC
File Type:
PE+ (Exe)
Extracted files:
590
AV detection:
18 of 26 (69.23%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cobaltstrike
Similar samples:
+ 2'666 additional samples on MalwareBazaar
Result
Malware family:
cobaltstrike
Score:
10/10
Tags:
family:cobaltstrike botnet:0 backdoor suricata trojan upx
Behaviour
Cobaltstrike
suricata: ET MALWARE Successful Cobalt Strike Shellcode Download (x64) M1
Unpacked files
SH256 hash:
37f9c8afe825007690994399d745c4e2b6142d56539c8f8dc3f004131a5c453f
MD5 hash:
8eb70104fe60be1bb677ad7b7cd3e145
SHA1 hash:
5312342bb7421e2a58284e213b2e2b9f1e929fb3
Malware family:
CobaltStrike
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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: | Cobaltbaltstrike_Beacon_x64 |
|---|---|
| Author: | Avast Threat Intel Team |
| Description: | Detects CobaltStrike payloads |
| Reference: | https://github.com/avast/ioc |
| Rule name: | CobaltStrikeBeacon |
|---|---|
| Author: | ditekshen, enzo & Elastic |
| Description: | Cobalt Strike Beacon Payload |
| Rule name: | CobaltStrike_C2_Encoded_XOR_Config_Indicator |
|---|---|
| Author: | yara@s3c.za.net |
| Description: | Detects CobaltStrike C2 encoded profile configuration |
| Rule name: | CobaltStrike_MZ_Launcher |
|---|---|
| Author: | yara@s3c.za.net |
| Description: | Detects CobaltStrike MZ header ReflectiveLoader launcher |
| 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: | malware_CobaltStrike_v3v4 |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect CobaltStrike Beacon in memory |
| Reference: | https://blogs.jpcert.or.jp/en/2018/08/volatility-plugin-for-detecting-cobalt-strike-beacon.html |
| Rule name: | MALW_cobaltrike |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Rule to detect CobaltStrike beacon |
| Reference: | https://malpedia.caad.fkie.fraunhofer.de/details/win.cobalt_strike |
| 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: | 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.
Web download
Delivery method
Distributed via web download
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