MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f83a161ef69ac7ab92c5386f3a7ab7528095a9926b2f89f0d95632a37c76d0b0. 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


Threat unknown


Vendor detections: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f83a161ef69ac7ab92c5386f3a7ab7528095a9926b2f89f0d95632a37c76d0b0
SHA3-384 hash: 82a677d101d03b70fa578f51384dcd36f5cbb8366f273a94a2872394cf5272dedf39308d8afb7057013ab04fbc4beb56
SHA1 hash: 2c5b55ccbf5d2faa9c10d4edcb409ba58d557168
MD5 hash: d25e6018794262f2410f911513dbeccc
humanhash: skylark-orange-beer-lactose
File name:Ou5tput.exe.vir
Download: download sample
File size:69'632 bytes
First seen:2022-06-18 14:58:15 UTC
Last seen:2022-06-18 15:31:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 768:IkJHwsU0mGzNiGGPEIapx80Ksuldw5VsGnxGMFD7iuw1VxbNEene7K+9fLs:BObGzNiGm8IlWiSDw1V57nev9fLs
Threatray 624 similar samples on MalwareBazaar
TLSH T1A363AE7A22F60DA0F2D5093549B34D0AD761BC59F99FBF1B2FC0001956DFACD4662D22
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter KdssSupport
Tags:exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
239
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Ou5tput.exe
Verdict:
Malicious activity
Analysis date:
2022-06-18 14:17:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f64f42af-0244-49bf-b7bc-56c03d161a39

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/281170/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILMamut.866.2953.16220.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file in the %temp% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Creating a process from a recently created file
Creating a process with a hidden window
Enabling the 'hidden' option for files in the %temp% directory
Creating a window
Enabling autorun
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint packed
Link:
https://www.filescan.io/uploads/62ade83f7046ab63f87b8a0f/reports/b52b4354-4382-4d85-9cef-bd5709f7674e/overview
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/cbe11779-80f3-48d5-957e-e9643e5a263e
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1015693
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Found evasive API chain checking for user administrative privileges
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 648188 Sample: Ou5tput.exe.vir Startdate: 18/06/2022 Architecture: WINDOWS Score: 88 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus / Scanner detection for submitted sample 2->42 44 Yara detected UAC Bypass using CMSTP 2->44 46 4 other signatures 2->46 9 Ou5tput.exe.exe 3 6 2->9         started        12 mshta.exe 2 4 2->12         started        14 Explorer.EXE 4 4 2->14         started        process3 file4 36 C:\Users\user\AppData\Local\...\CPLApplet.cpl, PE32+ 9->36 dropped 38 C:\Users\user\AppData\...\Ou5tput.exe.exe.log, ASCII 9->38 dropped 16 control.exe 1 9->16         started        process5 process6 18 rundll32.exe 2 3 16->18         started        file7 34 C:\Users\user\AppData\...\rundll32.exe.log, ASCII 18->34 dropped 48 Uses schtasks.exe or at.exe to add and modify task schedules 18->48 50 Adds a directory exclusion to Windows Defender 18->50 22 powershell.exe 19 18->22         started        24 schtasks.exe 1 18->24         started        26 schtasks.exe 1 18->26         started        signatures8 process9 process10 28 conhost.exe 22->28         started        30 conhost.exe 24->30         started        32 conhost.exe 26->32         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f83a161ef69ac7ab92c5386f3a7ab7528095a9926b2f89f0d95632a37c76d0b0/
Threat name:
ByteCode-MSIL.Trojan.Mamut
Create hunting rule
Status:
Malicious
First seen:
2022-06-18 14:59:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7a5bmhxwtld2xewfhbxtu6vxkkajlkmsnmxyt4gzkyzkg7dw2cya._file
Verdict:
malicious
Similar samples:
147acbbf007be667ae676b798af1cc0c6ef598d510e2223044ca241225d081f9
2b1d312ab2897c5508cb01be1252816ee15314ca3fa0b735d98ffb623779b73a
54b4c294aa0af37842024f57ba18af262f84859ff35c15a8a6595749f23c9524
709df2fcaf912ef11f49152efe8bc6eacfbf51e46f14c1ff0bf61352607c2ada
8fa6091ecf36c321aa568e76eab235f21ff0ca7e5906d75cb8e6c26abd2ef656
a09d4c0b107a9ba9bcbcfa0f8e202c7711beefdb6887581e225db4baf05456df
c7ccd6379627a10943964b592a5f38764ae1d0d0d39d17760940871fb3cd2958
+ 614 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/220618-scqddshdhp/
Behaviour
Creates scheduled task(s)
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Drops startup file
Loads dropped DLL
Unpacked files
SH256 hash:
f83a161ef69ac7ab92c5386f3a7ab7528095a9926b2f89f0d95632a37c76d0b0
MD5 hash:
d25e6018794262f2410f911513dbeccc
SHA1 hash:
2c5b55ccbf5d2faa9c10d4edcb409ba58d557168
Link:
https://www.unpac.me/results/9b568f2a-821b-4bf3-bf28-110ee18faa20/
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/f83a161ef69ac7ab92c5386f3a7ab7528095a9926b2f89f0d95632a37c76d0b0

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCMD
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP utility, command line and INF
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/281170/

Comments