MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa7a7a2de7f49468905a4441b74991746cfcc9e0243d3874a13b6f76df1d7ec0. 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


Stealc


Vendor detections: 16


Intelligence 16 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aa7a7a2de7f49468905a4441b74991746cfcc9e0243d3874a13b6f76df1d7ec0
SHA3-384 hash: 68035430538d5c297b0d623d3ea8d6626642bc52d5d4a1c9ea08548a4c3c09da34408c50d145303826146824e53218ce
SHA1 hash: f2be9a0b7ed4c5129eda4f20b9737d0fed763f92
MD5 hash: 19b016a6c49e0d7465a349ed5ed76b5a
humanhash: item-steak-vermont-zulu
File name:19b016a6c49e0d7465a349ed5ed76b5a.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:265'728 bytes
First seen:2023-10-19 09:35:11 UTC
Last seen:2023-10-19 10:35:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 87bb85280d56158859c1c42d02178700 (2 x Stealc, 1 x Smoke Loader, 1 x LummaStealer)
ssdeep 3072:9ABNzvnyQj2YGlFSmuayBEvPSmC/FOi/6w8POO:2ByQjzGLSmuaCEnm/F1j8B
Threatray 124 similar samples on MalwareBazaar
TLSH T16344CF11B690D472E0A36A315870C6511B7BFCF3AAA481CB33943F6EBE712D15B65B43
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 70d0ded1d2c9d2dd (1 x Stealc)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://kevinrobinson.top/e9c345fc99a4e67e.php

Intelligence

File Origin
# of uploads :
2
# of downloads :
338
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
smoke
Create hunting rule
ID:
1
File name:
19b016a6c49e0d7465a349ed5ed76b5a.exe
Verdict:
Malicious activity
Analysis date:
2023-10-19 09:36:27 UTC
Tags:
loader smoke
Link:
https://app.any.run/tasks/c06ad180-1e7e-4def-a536-53b5e89a41fc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.DownLoader46.24905.31923.22905.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
DNS request
Sending an HTTP POST request
Sending a custom TCP request
Enabling autorun by creating a file
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware lolbin shell32
Link:
https://www.filescan.io/uploads/6530f8844e8eaf1eb5ffc72b/reports/ebcaaa9d-815c-48c5-93b7-41e9339aabde/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/aa7a7a2de7f49468905a4441b74991746cfcc9e0243d3874a13b6f76df1d7ec0
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/85356210-8200-4728-bc20-e50a35a5f6e7
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1328609
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Detected unpacking (changes PE section rights)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1328609 Sample: oMgUDyrXFI.exe Startdate: 19/10/2023 Architecture: WINDOWS Score: 100 23 wirtshauspost.at 2->23 35 Multi AV Scanner detection for domain / URL 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 6 other signatures 2->41 7 oMgUDyrXFI.exe 2->7         started        10 asagesu 2->10         started        12 asagesu 2->12         started        signatures3 process4 signatures5 43 Detected unpacking (changes PE section rights) 7->43 45 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->45 47 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 7->47 55 3 other signatures 7->55 14 explorer.exe 39 3 7->14 injected 49 Antivirus detection for dropped file 10->49 51 Multi AV Scanner detection for dropped file 10->51 53 Machine Learning detection for dropped file 10->53 process6 dnsIp7 25 wirtshauspost.at 187.156.19.138, 49716, 49717, 49718 UninetSAdeCVMX Mexico 14->25 19 C:\Users\user\AppData\Roaming\asagesu, PE32 14->19 dropped 21 C:\Users\user\...\asagesu:Zone.Identifier, ASCII 14->21 dropped 27 System process connects to network (likely due to code injection or exploit) 14->27 29 Benign windows process drops PE files 14->29 31 Deletes itself after installation 14->31 33 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->33 file8 signatures9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/aa7a7a2de7f49468905a4441b74991746cfcc9e0243d3874a13b6f76df1d7ec0
Detection:
smokeloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/aa7a7a2de7f49468905a4441b74991746cfcc9e0243d3874a13b6f76df1d7ec0/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2023-10-19 03:10:47 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
19 of 22 (86.36%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vj5hulph6skgrec2ira3osmrorwpzspaeq6tq5fbhnxxnxy5p3aa._file
Verdict:
malicious
Similar samples:
0004d851f92bfea425f064b898e7668d84a26e12954785ce0ec3b62ff2e34d46
Stealc
0ef76ecabac1c81d4e2ed32c6fd30d846214f385a51523b4b78f105d9eb406a3
Stealc
247eb6cc11d0a92ac985fb99c19dcfe4779878f4989764b8ced06727820ff57c
Stealc
3b73c4da6f2bda6ebc26552afccbfd8c097a5a3195fd2593840d9ea7712b7120
Stealc
5c88a340b3b0502c9777fe6159f01d66875341dc739e23a56a21ee18479890f2
Stealc
6a302e65ae3cd7ceb6a94b2753f1a3223b189355eecbe443b0fd45722a495f48
Stealc
a73ee8f46c7caf4da7ea6a92dc0a11d58757a83e1b5b9c3723b49690fc238271
Stealc
e629fcf41de2187cafd4c8c38b1e9408a5c521d29459971bb96fae5da26fa9d5
Stealc
ecacf78ad957224fcc0afbd65118f2b5e8e2eda5daef0e072eef35e5f12a43b3
Stealc
+ 114 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:pub1 backdoor trojan
Link:
https://tria.ge/reports/231019-lkw3ksfb9t/
Behaviour
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of UnmapMainImage
Uses Task Scheduler COM API
Deletes itself
SmokeLoader
Malware Config
C2 Extraction:
http://wirtshauspost.at/tmp/
http://msktk.ru/tmp/
http://soetegem.com/tmp/
http://gromograd.ru/tmp/
http://talesofpirates.net/tmp/
Unpacked files
SH256 hash:
520163d1e3b4ac0b324cc02a1a63dde672cc11d2b7f5113993b04aa8c3ac0306
MD5 hash:
3c3fe2ea31124a0f22457207e5f84e79
SHA1 hash:
3ad3a6bcd05f431572f96bce57f3811f513d9be4
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/72214189-6612-416d-97d2-1e3d766c3142/
Parent samples :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 hash:
aa7a7a2de7f49468905a4441b74991746cfcc9e0243d3874a13b6f76df1d7ec0
MD5 hash:
19b016a6c49e0d7465a349ed5ed76b5a
SHA1 hash:
f2be9a0b7ed4c5129eda4f20b9737d0fed763f92
Link:
https://www.unpac.me/results/72214189-6612-416d-97d2-1e3d766c3142/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/aa7a7a2de7f4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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

File information

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

Web download

Stealc

Executable exe aa7a7a2de7f49468905a4441b74991746cfcc9e0243d3874a13b6f76df1d7ec0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2712491/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2712462/

Comments