MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28482c95eeb0279935cc0c59f30b00f4656c193c2c07dc3f74c5bc9b301d73a6. 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


Cobalt Strike


Vendor detections: 12


Intelligence 12 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 28482c95eeb0279935cc0c59f30b00f4656c193c2c07dc3f74c5bc9b301d73a6
SHA3-384 hash: 318a6b599b8ac92457f7bebc65a587f6efb161294e685b99ff4434dbc347f31d08992ef93cfc44f62cfd1d950e3815b5
SHA1 hash: 083007a02f8755ca62c7a4e7cb11e81134f8b5d4
MD5 hash: d85cad0990b58c957d75e70e32a1bac8
humanhash: echo-nuts-two-jupiter
File name:DeepSeekShellcoderloader.exe
Download: download sample
Signature Cobalt Strike
Create hunting rule
File size:26'624 bytes
First seen:2025-02-07 12:56:28 UTC
Last seen:2025-02-07 13:23:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ce72a943f37ea622ca8824278bde4188 (2 x Cobalt Strike)
ssdeep 384:FtOZuKD98pfam/y0iG3K8qIVQH1O52ArZdkkc:Ft0uK6l/ybG3fqIVCG5kkc
TLSH T1A4C26F02AF659DECD92040FEC0A7A422DA25BDC80362E7EF53D46F2939C53E17179663
TrID 63.5% (.EXE) Win64 Executable (generic) (10522/11/4)
12.2% (.EXE) OS/2 Executable (generic) (2029/13)
12.0% (.EXE) Generic Win/DOS Executable (2002/3)
12.0% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter Fadouse
Tags:Cobalt Strike exe Shellcode

Intelligence

File Origin
# of uploads :
2
# of downloads :
524
Origin country :
HK HK
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DeepSeekShellcoderloader.exe
Verdict:
No threats detected
Analysis date:
2025-02-07 12:58:24 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d2ea17e2-5c4e-4478-b91d-ab3de92af843

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.HEUR.Trojan.Win32.Agentb.gen.27531.250.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a6045bab8a2d1c6bcd7a15
Tags:
cobaltstrike agentb cobalt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching a process
Connection attempt
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm explorer lolbin microsoft_visual_cc obfuscated remote
Link:
https://www.filescan.io/uploads/67a6032b1ee194700efddd46/reports/69b406c8-3c4b-4e11-97df-4154063fe217/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/28482c95eeb0279935cc0c59f30b00f4656c193c2c07dc3f74c5bc9b301d73a6
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:
Unknown
Link:
https://analyze.intezer.com/analyses/1eed565f-6094-4dbb-a7f6-871897f63596
Result
Threat name:
CobaltStrike, Metasploit
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1609212
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Injects code into the Windows Explorer (explorer.exe)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected CobaltStrike
Yara detected Metasploit Payload
Behaviour
Behavior Graph:
Download SVG
Score:
79%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/28482c95eeb0279935cc0c59f30b00f4656c193c2c07dc3f74c5bc9b301d73a6
Detection:
cobaltstrike
Create hunting rule
Link:
https://mwdb.cert.pl/sample/28482c95eeb0279935cc0c59f30b00f4656c193c2c07dc3f74c5bc9b301d73a6/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fbeczfpowatzsnombrm7gcya6rswygj4fqd5yp3uyw6jwma5oota._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
metasploit
Create hunting rule
Similar samples:
error
Cobalt Strike
Result
Malware family:
cobaltstrike
Create hunting rule
Score:
  10/10
Tags:
family:cobaltstrike backdoor trojan
Link:
https://tria.ge/reports/250207-p6z8xasphl/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Cobaltstrike
Cobaltstrike family
Malware Config
C2 Extraction:
http://127.0.0.1:443/wmG2
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/29b33cdd-9658-4eb0-b920-767bb17016a9
Unpacked files
SH256 hash:
28482c95eeb0279935cc0c59f30b00f4656c193c2c07dc3f74c5bc9b301d73a6
MD5 hash:
d85cad0990b58c957d75e70e32a1bac8
SHA1 hash:
083007a02f8755ca62c7a4e7cb11e81134f8b5d4
Link:
https://www.unpac.me/results/ad95b6fc-a625-4901-9a19-6de6373b293d/
Malware family:
CobaltStrike
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/28482c95eeb0/report/overview.html
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/28482c95eeb0279935cc0c59f30b00f4656c193c2c07dc3f74c5bc9b301d73a6

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:Check_Debugger
Create hunting rule
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
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
Create hunting rule
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.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::GetSystemInfo
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW

Comments