MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 66f99d00978c99f2b5025ad213732f1543365a5cd55949736fa51552c21d25fa. 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: 12
| SHA256 hash: | 66f99d00978c99f2b5025ad213732f1543365a5cd55949736fa51552c21d25fa |
|---|---|
| SHA3-384 hash: | bf5e2f8bca8809d1defd49c0bfcff36ecad31e633b1e2f9e3d8a952ceb8f3c2e5153d66c50b3ffe67e64626512ab2b36 |
| SHA1 hash: | 4071c91cc1081ea319e1f5ecb81dd49f9b7c46cd |
| MD5 hash: | 3d3260134be0abaf29a5189112899315 |
| humanhash: | king-ink-sierra-mississippi |
| File name: | 66f99d00978c99f2b5025ad213732f1543365a5cd55949736fa51552c21d25fa.exe |
| Download: | download sample |
| Signature | CobaltStrike |
| File size: | 2'588'672 bytes |
| First seen: | 2023-05-23 10:08:35 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | a5d9c2ce025206d93665949648b5e519 (1 x CobaltStrike) |
| ssdeep | 49152:Inn3i2JMaBTfoBAsaYJLNuJ+eKVMWQE0LOVTdLB6/1Tb0ll9eUo3:IfBTfSu |
| Threatray | 329 similar samples on MalwareBazaar |
| TLSH | T10BC5046DBDAC9533E61039BFE6E3E51C8C235C22274148D791436B939C3F96A45B2E32 |
| TrID | 48.7% (.EXE) Win64 Executable (generic) (10523/12/4) 23.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 9.3% (.EXE) OS/2 Executable (generic) (2029/13) 9.2% (.EXE) Generic Win/DOS Executable (2002/3) 9.2% (.EXE) DOS Executable Generic (2000/1) |
| File icon (PE): |  |
| dhash icon | 60e584e6c0b49cc8 (2 x CobaltStrike) |
| Reporter |  Neiki |
| Tags: | CobaltStrike |
Intelligence
File Origin
# of uploads :
1
# of downloads :
154
Origin country :
USVendor Threat Intelligence
Malware family:
cobaltstrike
ID:
1
File name:
66f99d00978c99f2b5025ad213732f1543365a5cd55949736fa51552c21d25fa.exe
Verdict:
Malicious activity
Analysis date:
2023-05-23 10:09:25 UTC
Tags:
cobaltstrike
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
cobalt greyware
Verdict:
Malicious
Labled as:
Malware
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:
76 / 100
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Threat name:
Win64.Backdoor.CobaltStrikeBeacon
Status:
Malicious
First seen:
2023-05-23 10:09:07 UTC
File Type:
PE+ (Exe)
Extracted files:
14
AV detection:
13 of 22 (59.09%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cobaltstrike
Similar samples:
+ 319 additional samples on MalwareBazaar
Result
Malware family:
cobaltstrike
Score:
10/10
Tags:
family:cobaltstrike botnet:1000000 backdoor trojan
Behaviour
Program crash
Cobaltstrike
Malware Config
C2 Extraction:
http://124.220.154.54:443/logo.jpg
Unpacked files
SH256 hash:
66f99d00978c99f2b5025ad213732f1543365a5cd55949736fa51552c21d25fa
MD5 hash:
3d3260134be0abaf29a5189112899315
SHA1 hash:
4071c91cc1081ea319e1f5ecb81dd49f9b7c46cd
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: | 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: | CobaltStrike_Sleeve_BeaconLoader_VA_x64_o_v4_3_v4_4_v4_5_and_v4_6 |
|---|---|
| Author: | gssincla@google.com |
| Description: | Cobalt Strike's sleeve/BeaconLoader.VA.x64.o (VirtualAlloc) Versions 4.3 through at least 4.6 |
| Reference: | https://cloud.google.com/blog/products/identity-security/making-cobalt-strike-harder-for-threat-actors-to-abuse |
| Rule name: | CobaltStrike__Sleeve_BeaconLoader_VA_x64_o_v4_3_v4_4_v4_5_and_v4_6 |
|---|---|
| Author: | gssincla@google.com |
| 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_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: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | SUSP_XORed_Mozilla |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key. |
| Reference: | https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force() |
| Rule name: | SUSP_XORed_Mozilla_RID2DB4 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects suspicious XORed keyword - Mozilla/5.0 |
| Reference: | Internal Research |
| Rule name: | SUSP_XORed_URL_in_EXE |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects an XORed URL in an executable |
| Reference: | https://twitter.com/stvemillertime/status/1237035794973560834 |
| Rule name: | SUSP_XORed_URL_in_EXE_RID2E46 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects an XORed URL in an executable |
| Reference: | https://twitter.com/stvemillertime/status/1237035794973560834 |
| Rule name: | Trojan_Raw_Generic_4 |
|---|---|
| Author: | FireEye |
| Reference: | https://www.fireeye.com/blog/products-and-services/2020/12/fireeye-shares-details-of-recent-cyber-attack-actions-to-protect-community.html |
| Rule name: | Windows_Trojan_CobaltStrike_1787eef5 |
|---|---|
| Author: | Elastic Security |
| Description: | CS shellcode variants |
| Rule name: | Windows_Trojan_CobaltStrike_f0b627fc |
|---|---|
| Author: | Elastic Security |
| Description: | Rule for beacon reflective loader |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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