MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 905b9db8cf5a3001318b28ee5dc674f8f65ca1e4306aab9e331b3bba24e7b8a8. 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


UACModuleSmokeLoader


Vendor detections: 12


Intelligence 12 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 905b9db8cf5a3001318b28ee5dc674f8f65ca1e4306aab9e331b3bba24e7b8a8
SHA3-384 hash: 6841773dae6bfacec8e561a06d4c8c1f1bfeab5a0f37532a8a8c1af2cfef0b2b09c33dc9de5804131df0a831b23aa646
SHA1 hash: 1da76d6bf7be8a9342fd205a5b250bae7a3c90ef
MD5 hash: 621e143243b614d72dd0a355c8789899
humanhash: florida-johnny-magnesium-lion
File name:621e143243b614d72dd0a355c8789899.exe
Download: download sample
Signature UACModuleSmokeLoader
Create hunting rule
File size:586'752 bytes
First seen:2023-08-31 05:35:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1a8fc4793fbcc767c326587aa9ce326b (1 x UACModuleSmokeLoader)
ssdeep 12288:LW86pgVmN0WzPc8/C5tWaoduPTRO6kqaSjwgs0jv4pJg3L:a86vN0WrclvHwWTRO6kPMs0jv
Threatray 54 similar samples on MalwareBazaar
TLSH T12FC40133B6D2C072E53756701661D2B11EB6BC700BA155CF2BA42E3A2F746D18F3939A
TrID 37.3% (.EXE) Win64 Executable (generic) (10523/12/4)
17.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
16.0% (.EXE) Win32 Executable (generic) (4505/5/1)
7.3% (.ICL) Windows Icons Library (generic) (2059/9)
7.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon a446222260c88000 (1 x UACModuleSmokeLoader)
Reporter abuse_ch
Tags:exe UACModuleSmokeLoader

Intelligence

File Origin
# of uploads :
1
# of downloads :
300
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
621e143243b614d72dd0a355c8789899.exe
Verdict:
Malicious activity
Analysis date:
2023-08-31 05:38:47 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f1f27199-3dbf-4c5f-8e7b-de1e61838880

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/445408/
Detection(s):
SecuriteInfo.com.Trojan.Siggen21.24385.26739.18247.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending a custom TCP request
Rewriting of the hard drive's master boot record
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control greyware lolbin mokes packed pitou shell32
Link:
https://www.filescan.io/uploads/64f026c57444d2eb09f3d9bd/reports/b9889a82-dd60-4c17-aa11-bc0281b66340/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/905b9db8cf5a3001318b28ee5dc674f8f65ca1e4306aab9e331b3bba24e7b8a8
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:
Pitou
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0b4dc888-2e75-404e-8337-e5f75d86f0c7
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1300811
Signature
Contains functionality to infect the boot sector
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/905b9db8cf5a3001318b28ee5dc674f8f65ca1e4306aab9e331b3bba24e7b8a8/
Threat name:
Win32.Trojan.Cerbu
Create hunting rule
Status:
Malicious
First seen:
2023-08-30 22:43:49 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sbnz3ogpliyacmmlfdxf3rtu7d3fzipegbvkxhrtdm53ujhhxcua._file
Verdict:
malicious
Similar samples:
0492bb7752122b4c35a9d914b96318401ec1c187739aea0231ea54e7cbeebc76
UACModuleSmokeLoader
0c8fcb4201e67579906b7a3512f0f093297231ecad2b949a7b41d377f22b5d56
UACModuleSmokeLoader
17745cf313048c8618b348f3ed48abf6dc440e956a33ffdb252e53d6c05062a4
UACModuleSmokeLoader
375f623741fe071117c32d8e027f9a705ab54586b12ee5504a56d2205e95b38c
UACModuleSmokeLoader
46a218a16190914c66dbcdf1a8c0d35aa3d0bc246b6cf16075567c85340bd33f
UACModuleSmokeLoader
c98b767c0ceb5c2bc05e873a06f0f264d8f7e42fd51c475e8595514d8b81f09f
UACModuleSmokeLoader
d68839827fc159c514d91b76e31f3ec0f665a1e577433c11955acb5b4fce2057
UACModuleSmokeLoader
e7910bc87f0092c72a683ae1bb28ed7ba91077bdfe38dc82376f154b2ccf022d
UACModuleSmokeLoader
+ 44 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  6/10
Tags:
bootkit persistence
Link:
https://tria.ge/reports/230831-gakvcacg71/
Behaviour
Writes to the Master Boot Record (MBR)
Unpacked files
SH256 hash:
34214083ce60696dc171d58c3152856c1a0eb661a4741e22a340bdd52258b130
MD5 hash:
a88a0c4d6e13fae0fe18355522632341
SHA1 hash:
7efeee839a564461fdafc79a3c22d490137a6ef7
Link:
https://www.unpac.me/results/0367e643-ba29-46e5-9d84-aecf3e466f80/
Parent samples :
6c3faa9c54a7d44226623afee69d63114957699330dd576092965999550dd19d
f5ab502850f557c78d1ad09eb855a47ff25ce8aa00e8d67b4144a88228ebca3c
8a4eddeda8fecb5a816a28f0760ee4d0d8bf23edbda384a5913d631d676c7438
6a9ed12c03ce93c32945020a180464af9589be469a9193160f6eb7b45e4ede04
e92de9eadeef273bd294c6eceb92f750768766a79c215843e948f37b95bb6723
b565fe1734ee581763ff75a4e26f262d8268333f675d0a5bc2681950bc4ff6cc
66e164f2a4ea3b37586ceb2d699aa89e8a9475e9cd25c51476fd0a7d307df76a
SH256 hash:
905b9db8cf5a3001318b28ee5dc674f8f65ca1e4306aab9e331b3bba24e7b8a8
MD5 hash:
621e143243b614d72dd0a355c8789899
SHA1 hash:
1da76d6bf7be8a9342fd205a5b250bae7a3c90ef
Link:
https://www.unpac.me/results/0367e643-ba29-46e5-9d84-aecf3e466f80/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/905b9db8cf5a/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/905b9db8cf5a3001318b28ee5dc674f8f65ca1e4306aab9e331b3bba24e7b8a8

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:ICMLuaUtil_UACMe_M41
Create hunting rule
Author:Marius 'f0wL' Genheimer <hello@dissectingmalwa.re>
Description:A Yara rule for UACMe Method 41 -> ICMLuaUtil Elevated COM interface
Reference:https://github.com/hfiref0x/UACME
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:smokeloader_uac_module
Create hunting rule
Author:Nikolaos 'n0t' Totosis
Description:UAC bypass/file dropped by Smokeloader
Rule name:Windows_Trojan_Smokeloader_3687686f
Create hunting rule
Author:Elastic Security
Rule name:win_pitou_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.pitou.

File information

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

Web download

UACModuleSmokeLoader

Executable exe 905b9db8cf5a3001318b28ee5dc674f8f65ca1e4306aab9e331b3bba24e7b8a8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2628134/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/445408/

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