MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 eb94cd39cde6a5270181d6e6788c69a2a90ab2b27f9236c8382e810e4dfead1d. 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


Intelligence 11 IOCs YARA 8 File information Comments

SHA256 hash: eb94cd39cde6a5270181d6e6788c69a2a90ab2b27f9236c8382e810e4dfead1d
SHA3-384 hash: 8547f1192d7b3280bfc80ac8dadd299cbc5c2ce5a86dff2482bf91d37ab7f7d40f2ff59201a98a09a4f3be2340cc03fb
SHA1 hash: 62df51eb1351279afa4dbe5920758d6974427ac9
MD5 hash: 3f2202e24ad0a66c08f88a18dd7b5fb4
humanhash: carpet-mobile-pizza-nevada
File name:关于集团及子公司开展网络安全攻防演习的通知.exe
Download: download sample
Signature CobaltStrike
File size:4'732'928 bytes
First seen:2022-08-05 07:50:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9cbefe68f395e67356e2a5d8d1b285c0 (15 x Hive, 4 x CobaltStrike, 2 x Merlin)
ssdeep 49152:BuZC3FJrb/TWvO90dL3BmAFd4A64nsfJ+WNq3v3MVkOHx3bEnnkY3Xw4g9MUth7A:aC3F0uKUrwUZ0
TLSH T12426BF333982B8FADAAD697184242D411D7CB88B172053C7BB4975FE36BA2D44D3C768
gimphash bf9f8fb314aabee5dd36ea68d5377133d0d8264d175444139ef954759ac811a7
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):PE icon
dhash icon 5549ccd451696955 (1 x CobaltStrike)
Reporter @obfusor
Tags:CobaltStrike exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
295
Origin country :
HK HK
Mail intelligence
No data
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
关于集团及子公司开展网络安全攻防演习的通知.exe
Verdict:
No threats detected
Analysis date:
2022-08-05 07:51:02 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the Windows subdirectories
Creating a process from a recently created file
Creating a file
Running batch commands
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
Searching for the window
Creating a window
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
MalwareBazaar
MeasuringTime
CPUID_Instruction
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
golang packed
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:
CobaltStrike
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Potentially malicious time measurement code found
Yara detected CobaltStrike
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 679126 Sample: 1a#U77e5.exe Startdate: 05/08/2022 Architecture: WINDOWS Score: 100 26 Malicious sample detected (through community Yara rule) 2->26 28 Antivirus detection for URL or domain 2->28 30 Antivirus / Scanner detection for submitted sample 2->30 32 3 other signatures 2->32 7 1a#U77e5.exe 2 2->7         started        process3 file4 22 C:\Windows\Temp\????????????.exe, PE32+ 7->22 dropped 10 ????????????.exe 1 7->10         started        14 cmd.exe 5 2 7->14         started        process5 dnsIp6 24 124.221.206.154, 1443, 49755, 49763 JCN-AS-KRUlsanJung-AngBroadcastingNetworkKR China 10->24 34 Antivirus detection for dropped file 10->34 36 Multi AV Scanner detection for dropped file 10->36 38 Potentially malicious time measurement code found 10->38 16 conhost.exe 10->16         started        18 WINWORD.EXE 248 35 14->18         started        20 conhost.exe 14->20         started        signatures7 process8
Threat name:
Win64.Trojan.CobaltStrike
Status:
Malicious
First seen:
2022-07-09 11:33:40 UTC
File Type:
PE+ (Exe)
Extracted files:
2
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Result
Malware family:
cobaltstrike
Score:
  10/10
Tags:
family:cobaltstrike botnet:0 backdoor trojan
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: CmdExeWriteProcessMemorySpam
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in Windows directory
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Cobaltstrike
Malware Config
C2 Extraction:
http://124.221.206.154:1443/submit.php
Unpacked files
SH256 hash:
eb94cd39cde6a5270181d6e6788c69a2a90ab2b27f9236c8382e810e4dfead1d
MD5 hash:
3f2202e24ad0a66c08f88a18dd7b5fb4
SHA1 hash:
62df51eb1351279afa4dbe5920758d6974427ac9

YARA Signatures


MalareBazaar uses YARA rules from several public and non-public repositories, such as Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious proccess dumps they may create. Please note that only results from TLP:WHITE rules are being displayeyd.

Rule name:BitcoinAddress
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:command_and_control
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
Rule name:GoBinTest
Rule name:golang
Rule name:Golangmalware
Author:Dhanunjaya
Description:Malware in Golang
Rule name:HiveRansomware
Author:Dhanunjaya
Description:Yara Rule To Detect Hive V4 Ransomware
Rule name:identity_golang
Author:Eric Yocam
Description:find Golang malware
Rule name:methodology_golang_build_strings
Author:smiller
Description:Looks for PEs with a Golang build ID

File information


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

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