MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40ccbe4d4a5bf8bed3b1fdbf586162ac7046fad1a68400539d9a6f827b1357b6. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40ccbe4d4a5bf8bed3b1fdbf586162ac7046fad1a68400539d9a6f827b1357b6
SHA3-384 hash: 00f090ad2ff879fd4c47cdbdb1117287e6ada59b14377cf727ccbce17e845651f2cace104b5166ff48564430a7b40665
SHA1 hash: 1d85109920e8d56f1b84096eba24b860f25e7edb
MD5 hash: fd30f3a2dd525c009bc289aa6adf3566
humanhash: cola-sweet-juliet-india
File name:任烨-中国传媒大学.exe
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:1'410'560 bytes
First seen:2022-04-26 10:50:24 UTC
Last seen:2022-04-26 11:56:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 9140121d8ae6dffe64778b6890657289 (1 x CobaltStrike)
ssdeep 24576:0Hyi0YRzZgx/jtTObFtURiRQkzRQD9ZkdxTu5iZpUHLQfRRN:HIIhTObMbIItry
Threatray 1'669 similar samples on MalwareBazaar
TLSH T16A65CDF26B56DC3BF488B534A1819124BE9EBFE2F4E250CE215CF65A193178148F5C2B
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)
File icon (PE):PE icon
dhash icon 74f4e4cceac2c4dc (7 x AgentTesla, 6 x AveMariaRAT, 3 x CobaltStrike)
Reporter yingxin1996
Tags:CobaltStrike exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
672
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/266751/
Detection(s):
SecuriteInfo.com.Trojan.Shelma8.1A3DTFE.dGZlOgUNvdcnn1yUvw.29282.27187.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Launching cmd.exe command interpreter
Creating a process with a hidden window
Creating a file in the Windows subdirectories
Running batch commands
Creating a process from a recently created file
Creating a window
Sending a custom TCP request
Launching a process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-debug
Link:
https://www.filescan.io/uploads/6267ce992f162d9fdf6b4b0f/reports/45c6d6ef-8b33-49a9-8a5b-ecfe70b9a708/overview
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.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9cb9c48a-b445-4cae-bc00-9de63c66a1ca
Result
Threat name:
CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/983154
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Found API chain indicative of debugger detection
Found malware configuration
Injects code into the Windows Explorer (explorer.exe)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: Suspicious Process Parents
System process connects to network (likely due to code injection or exploit)
Writes to foreign memory regions
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 615651 Sample: #U4efb#U70e8-#U4e2d#U56fd#U... Startdate: 26/04/2022 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 Yara detected CobaltStrike 2->39 41 2 other signatures 2->41 8 #U4efb#U70e8-#U4e2d#U56fd#U4f20#U5a92#U5927#U5b66.exe 2 2->8         started        process3 file4 31 C:\Windows\Temp\notepad.exe, PE32+ 8->31 dropped 51 Found API chain indicative of debugger detection 8->51 12 cmd.exe 1 8->12         started        14 cmd.exe 1 8->14         started        16 cmd.exe 1 8->16         started        signatures5 process6 process7 18 notepad.exe 12->18         started        21 conhost.exe 12->21         started        23 conhost.exe 14->23         started        25 conhost.exe 16->25         started        signatures8 43 Found API chain indicative of debugger detection 18->43 45 Injects code into the Windows Explorer (explorer.exe) 18->45 47 Writes to foreign memory regions 18->47 49 2 other signatures 18->49 27 explorer.exe 12 18->27         started        process9 dnsIp10 33 49.233.48.44, 443, 49729, 49731 CNNIC-TENCENT-NET-APShenzhenTencentComputerSystemsCompa China 27->33 53 System process connects to network (likely due to code injection or exploit) 27->53 signatures11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/40ccbe4d4a5bf8bed3b1fdbf586162ac7046fad1a68400539d9a6f827b1357b6/
Threat name:
Win64.Backdoor.CobaltStrikeBeacon
Create hunting rule
Status:
Malicious
First seen:
2022-04-26 10:51:09 UTC
File Type:
PE+ (Exe)
Extracted files:
48
AV detection:
12 of 26 (46.15%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
Similar samples:
0b4c743246478a6a8c9fa3ff8e04f297507c2f0ea5d61a1284fe65387d172f81
CobaltStrike
15d06d1741cc8b5495da9c79c6f630e33060e80c73da9666500f6f0bdf5ff259
CobaltStrike
162d0b27db414f15b5ae0870b2a4132b7fad64f8471441541ff153c2aded121a
CobaltStrike
26a4c5b36d9fde80ea47137eb53b40dacf240432a5895f98417eae51b6b681da
CobaltStrike
4b12f4fdf07d06fb59b5619d01a293c51d32efd183d45a87459b47d5169cfe51
CobaltStrike
4b4bcdcc293f734c7504ef54fbc90c4399210a0617a8f25e5c660d5735b1d7dd
CobaltStrike
5879d39a0bab80032ebc751728e034cf7ec7fb30749090b5df8c37100034ef95
CobaltStrike
590e531489556cfb9de022bc52bce2489c3609e693209c59fdce5698c6fc0be3
CobaltStrike
adf8e5128003e712d0e1e7d0b3833864971711c03c8099bfcf369ab6764d5415
CobaltStrike
cd405e770529383fa2faaa18d006bd308d72a18995f808229677a2f803d2de96
CobaltStrike
+ 1'659 additional samples on MalwareBazaar
Result
Malware family:
cobaltstrike
Create hunting rule
Score:
  10/10
Tags:
family:cobaltstrike botnet:426352781 backdoor persistence trojan
Link:
https://tria.ge/reports/220426-mxtcwscbb8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Cobaltstrike
Suspicious use of NtCreateUserProcessOtherParentProcess
Malware Config
C2 Extraction:
http://49.233.48.44:443/Rpc
http://49.233.48.44:443/owa
Unpacked files
SH256 hash:
40ccbe4d4a5bf8bed3b1fdbf586162ac7046fad1a68400539d9a6f827b1357b6
MD5 hash:
fd30f3a2dd525c009bc289aa6adf3566
SHA1 hash:
1d85109920e8d56f1b84096eba24b860f25e7edb
Link:
https://www.unpac.me/results/da2eebb9-386a-46a8-a946-8589d0203c97/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/40ccbe4d4a5bf8bed3b1fdbf586162ac7046fad1a68400539d9a6f827b1357b6

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/266751/

Comments