MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 50cb576c9a7922dea90ffdeca6bb54e1f588e4c2021b3c214621097ff127fc9d. 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: 13


Intelligence 13 IOCs YARA 8 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 50cb576c9a7922dea90ffdeca6bb54e1f588e4c2021b3c214621097ff127fc9d
SHA3-384 hash: 61593295f372506dd5a0905fee1280272cd16cfb72fdf89a47ed72fcefb45e250d411134d8e8ee3a8ec941b3e0084057
SHA1 hash: 3b16c350953e2127c94afb1d7d5f9d5bb78bc4f4
MD5 hash: 5df1c402a4b5333db50f321fa0dcb419
humanhash: salami-carbon-hotel-oranges
File name:5df1c402a4b5333db50f321fa0dcb419
Download: download sample
Signature UACModuleSmokeLoader
Create hunting rule
File size:626'688 bytes
First seen:2024-04-28 09:34:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f654e5c1b5e321f3cf66a20ff016ccab (12 x Stealc, 1 x UACModuleSmokeLoader)
ssdeep 12288:CpyhdMx8Em4KrkXIBw8ZxFdj3mUpZfhPad:IxVvKrjZXNZf8d
Threatray 178 similar samples on MalwareBazaar
TLSH T127D4D0036AE07C54F566C7328E3EF6E5262DF9204E997B672208BA6F10B91F1F123751
TrID 37.3% (.EXE) Win64 Executable (generic) (10523/12/4)
17.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.9% (.EXE) Win32 Executable (generic) (4504/4/1)
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 0001000809001000 (1 x UACModuleSmokeLoader)
Reporter zbetcheckin
Tags:32 exe UACModuleSmokeLoader

Intelligence

File Origin
# of uploads :
1
# of downloads :
304
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
50cb576c9a7922dea90ffdeca6bb54e1f588e4c2021b3c214621097ff127fc9d.exe
Verdict:
Malicious activity
Analysis date:
2024-04-28 10:00:08 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6e11580f-cbe6-4729-bb4f-892c768d22ff

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

Behaviour
Searching for the window
Сreating synchronization primitives
Rewriting of the hard drive's master boot record
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint packed
Link:
https://www.filescan.io/uploads/662e184975339da04fa46d14/reports/860b6315-6adf-44d1-b9fa-d676d3df64a7/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/50cb576c9a7922dea90ffdeca6bb54e1f588e4c2021b3c214621097ff127fc9d
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/f594b3d3-3250-4a66-89a4-54edfe3af6da
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1432855
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
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/50cb576c9a7922dea90ffdeca6bb54e1f588e4c2021b3c214621097ff127fc9d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/50cb576c9a7922dea90ffdeca6bb54e1f588e4c2021b3c214621097ff127fc9d/
Threat name:
Win32.Trojan.StealC
Create hunting rule
Status:
Malicious
First seen:
2024-04-28 09:35:05 UTC
File Type:
PE (Exe)
Extracted files:
61
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kdfvo3e2pern5kip7xwkno2u4h2yrzgcaintyikgeeex74jh7soq._file
Verdict:
malicious
Similar samples:
0c8fcb4201e67579906b7a3512f0f093297231ecad2b949a7b41d377f22b5d56
UACModuleSmokeLoader
17745cf313048c8618b348f3ed48abf6dc440e956a33ffdb252e53d6c05062a4
UACModuleSmokeLoader
22618620d54f8dc9541881741fc04042aea9d77c4ff38b84682b50a41a4a2371
UACModuleSmokeLoader
375f623741fe071117c32d8e027f9a705ab54586b12ee5504a56d2205e95b38c
UACModuleSmokeLoader
6c3faa9c54a7d44226623afee69d63114957699330dd576092965999550dd19d
UACModuleSmokeLoader
847c63e04f33c4dbd37273ef7158bc8b2570f8ba54aa008ca6aba67089d0836b
UACModuleSmokeLoader
c98b767c0ceb5c2bc05e873a06f0f264d8f7e42fd51c475e8595514d8b81f09f
UACModuleSmokeLoader
+ 168 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  6/10
Tags:
bootkit persistence
Link:
https://tria.ge/reports/240428-lkcc6sda3s/
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/e7e439bc-b359-45bb-984d-5eeb727ac209/
Parent samples :
6c3faa9c54a7d44226623afee69d63114957699330dd576092965999550dd19d
f5ab502850f557c78d1ad09eb855a47ff25ce8aa00e8d67b4144a88228ebca3c
8a4eddeda8fecb5a816a28f0760ee4d0d8bf23edbda384a5913d631d676c7438
6a9ed12c03ce93c32945020a180464af9589be469a9193160f6eb7b45e4ede04
e92de9eadeef273bd294c6eceb92f750768766a79c215843e948f37b95bb6723
b565fe1734ee581763ff75a4e26f262d8268333f675d0a5bc2681950bc4ff6cc
66e164f2a4ea3b37586ceb2d699aa89e8a9475e9cd25c51476fd0a7d307df76a
SH256 hash:
50cb576c9a7922dea90ffdeca6bb54e1f588e4c2021b3c214621097ff127fc9d
MD5 hash:
5df1c402a4b5333db50f321fa0dcb419
SHA1 hash:
3b16c350953e2127c94afb1d7d5f9d5bb78bc4f4
Link:
https://www.unpac.me/results/e7e439bc-b359-45bb-984d-5eeb727ac209/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/50cb576c9a79/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/50cb576c9a7922dea90ffdeca6bb54e1f588e4c2021b3c214621097ff127fc9d

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:Windows_Generic_Threat_5fbf5680
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Generic_2993e5a5
Create hunting rule
Author:Elastic Security

File information

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

Web download

UACModuleSmokeLoader

Executable exe 50cb576c9a7922dea90ffdeca6bb54e1f588e4c2021b3c214621097ff127fc9d

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2829993/

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 (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetVolumeInformationA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleInputA
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesA
KERNEL32.dll::GetConsoleProcessList
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetWindowsDirectoryA
KERNEL32.dll::RemoveDirectoryA
KERNEL32.dll::GetTempPathA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
KERNEL32.dll::QueryDosDeviceW

Comments


Avatar
zbet commented on 2024-04-28 09:34:56 UTC

url : hxxp://ra-ftp.com/tech/1.jpg