MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a2d546749333d57f7370f528e63ab3b688f72b2b33fb33bdbcab494efc766bd1. 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: 7
| SHA256 hash: | a2d546749333d57f7370f528e63ab3b688f72b2b33fb33bdbcab494efc766bd1 |
|---|---|
| SHA3-384 hash: | 55a7b6182cf0c5d855d119bbf3c550256f44688670e739aae1fec7283aa86867fd42f16bf4a37f3aac9fe7e4211ccbc3 |
| SHA1 hash: | cce9113d8a8b515bfb7d83acf7b1996994144a33 |
| MD5 hash: | 459b0bdd45947e5861ce2d876c3c4033 |
| humanhash: | freddie-april-echo-cardinal |
| File name: | update.exe |
| Download: | download sample |
| Signature | CobaltStrike |
| File size: | 431'104 bytes |
| First seen: | 2022-08-03 07:31:20 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | e90de0c769aaf7f6d42e62efc3778812 (2 x CobaltStrike) |
| ssdeep | 6144:r5nJbgFuOg/WOWu38XMamM+/FnFnFnFnFnFnFnFnFnFnFnFnFnFnFnFnFnFnFnFn:5VO/OWqE3l5zrCZBUeBI8l |
| Threatray | 8 similar samples on MalwareBazaar |
| TLSH | T1E1947B1401268397DAB51DF307D572CE8C1320DEB8B4CD272766DA6E47B23A7E91A23D |
| TrID | 43.3% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 27.5% (.EXE) Win64 Executable (generic) (10523/12/4) 13.2% (.EXE) Win16 NE executable (generic) (5038/12/1) 5.3% (.EXE) OS/2 Executable (generic) (2029/13) 5.2% (.EXE) Generic Win/DOS Executable (2002/3) |
| Reporter |  JAMESWT_WT |
| Tags: | CobaltStrike exe |
Intelligence
File Origin
# of uploads :
1
# of downloads :
733
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
update.exe
Verdict:
No threats detected
Analysis date:
2022-08-03 08:10:24 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for the window
DNS request
Creating a file in the Program Files subdirectories
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
anti-debug explorer.exe packed
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:
stunnel4
Verdict:
Suspicious
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found API chain indicative of debugger detection
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Threat name:
Win64.Trojan.Generic
Status:
Suspicious
First seen:
2022-08-03 07:32:08 UTC
File Type:
PE+ (Exe)
AV detection:
22 of 26 (84.62%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
unknown
Similar samples:
Unpacked files
SH256 hash:
a2d546749333d57f7370f528e63ab3b688f72b2b33fb33bdbcab494efc766bd1
MD5 hash:
459b0bdd45947e5861ce2d876c3c4033
SHA1 hash:
cce9113d8a8b515bfb7d83acf7b1996994144a33
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.96
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_Sleep_Decoder_Indicator |
|---|---|
| Author: | yara@s3c.za.net |
| Description: | Detects CobaltStrike sleep_mask decoder |
| 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: | 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: | SUSP_XORed_Mozilla |
|---|---|
| Author: | Florian Roth |
| 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 |
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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