MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4bef3d8e2b5a1741edbcbaf6b3bcc04a352835094fa20ba64499228fc51b4ba. 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


ArkeiStealer


Vendor detections: 12


Intelligence 12 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c4bef3d8e2b5a1741edbcbaf6b3bcc04a352835094fa20ba64499228fc51b4ba
SHA3-384 hash: 27bbfa260efe0a03d1d2066ab11c7d217182c230892ef8327ecf3cd87e3a8f4e6071d96d4da77aaacfc6cbbdf43af8b7
SHA1 hash: 66072915f42343b7b656e9ec26b16f600e13ce86
MD5 hash: 1c9551a472fef104be9c8615b501c396
humanhash: stairway-echo-summer-don
File name:file
Download: download sample
Signature ArkeiStealer
Create hunting rule
File size:416'768 bytes
First seen:2022-12-29 18:39:49 UTC
Last seen:2022-12-30 09:09:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 9d1c3d28297405a9d4dc390e6629ae38 (9 x Smoke Loader, 5 x RedLineStealer, 1 x ArkeiStealer)
ssdeep 6144:ILmQeioqCbzDzF1cBBMZ8eW5S4RyNKmy+vqyIxZ1WqqdS/9R:IiViWznXcB250hyNKqvqdYM
TLSH T17A94D01062B1BA1FE5FBC5799D19E2F0262FBD015911B6EA3306693F39703A0B53173A
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 fcfc94b494949cc0 (21 x Smoke Loader, 12 x RedLineStealer, 2 x Gozi)
Reporter andretavare5
Tags:ArkeiStealer exe


Avatar
andretavare5
Sample downloaded from http://45.84.0.83/2825.exe

Intelligence

File Origin
# of uploads :
406
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-12-29 18:42:08 UTC
Tags:
trojan stealer vidar
Link:
https://app.any.run/tasks/c222bd27-6b2c-476f-bead-e2c50d680411

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Reading critical registry keys
Using the Windows Management Instrumentation requests
Creating a window
Connecting to a non-recommended domain
Creating a process from a recently created file
Running batch commands
Creating a process with a hidden window
Launching a process
Launching the default Windows debugger (dwwin.exe)
Stealing user critical data
Unauthorized injection to a recently created process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/63addf05a70bef46551c1a79/reports/ad8edab9-ebe6-42a0-acad-5c5b2724dc20/overview
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.
Malware family:
Arkei Stealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/21385ae1-4e27-4926-85dd-80eec5d192f3
Result
Threat name:
Vidar, Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1142843
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
DNS related to crypt mining pools
Encrypted powershell cmdline option found
Found strings related to Crypto-Mining
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies power options to not sleep / hibernate
Modifies the hosts file
Multi AV Scanner detection for dropped file
PE file contains section with special chars
PE file has nameless sections
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample is not signed and drops a device driver
Self deletion via cmd or bat file
Sigma detected: Schedule system process
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses powercfg.exe to modify the power settings
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected Vidar stealer
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 775573 Sample: file.exe Startdate: 29/12/2022 Architecture: WINDOWS Score: 100 92 xmr-eu1.nanopool.org 2->92 94 www.google.com 2->94 96 rentry.co 2->96 116 Malicious sample detected (through community Yara rule) 2->116 118 Antivirus detection for URL or domain 2->118 120 Antivirus detection for dropped file 2->120 122 12 other signatures 2->122 10 file.exe 22 2->10         started        15 cmd.exe 2->15         started        17 RegSvc.exe 2->17         started        signatures3 process4 dnsIp5 100 t.me 149.154.167.99, 443, 49685 TELEGRAMRU United Kingdom 10->100 102 116.203.164.147, 49686, 80 HETZNER-ASDE Germany 10->102 104 45.84.0.83, 49687, 80 ALEXHOSTMD Russian Federation 10->104 82 C:\Users\user\AppData\Local\...\mn1[1].exe, PE32 10->82 dropped 84 C:\ProgramData\29074070091795567226.exe, PE32 10->84 dropped 142 Detected unpacking (changes PE section rights) 10->142 144 Detected unpacking (creates a PE file in dynamic memory) 10->144 146 Detected unpacking (overwrites its own PE header) 10->146 152 4 other signatures 10->152 19 29074070091795567226.exe 15 5 10->19         started        24 cmd.exe 1 10->24         started        26 svhost.exe 15->26         started        28 conhost.exe 15->28         started        30 chcp.com 15->30         started        106 rentry.co 17->106 148 Multi AV Scanner detection for dropped file 17->148 150 Machine Learning detection for dropped file 17->150 file6 signatures7 process8 dnsIp9 98 transfer.sh 144.76.136.153, 443, 49688 HETZNER-ASDE Germany 19->98 80 C:\Users\...\117814729-j0xYuta9G35m02YL.exe, PE32 19->80 dropped 124 Antivirus detection for dropped file 19->124 126 Multi AV Scanner detection for dropped file 19->126 128 Detected unpacking (changes PE section rights) 19->128 130 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 19->130 32 117814729-j0xYuta9G35m02YL.exe 14 27 19->32         started        132 Encrypted powershell cmdline option found 24->132 134 Uses schtasks.exe or at.exe to add and modify task schedules 24->134 136 Uses powercfg.exe to modify the power settings 24->136 138 Modifies power options to not sleep / hibernate 24->138 37 conhost.exe 24->37         started        39 timeout.exe 1 24->39         started        41 conhost.exe 24->41         started        43 schtasks.exe 24->43         started        140 Machine Learning detection for dropped file 26->140 file10 signatures11 process12 dnsIp13 86 api.telegram.org 149.154.167.220, 443, 49691 TELEGRAMRU United Kingdom 32->86 88 rentry.co 107.189.8.5, 443, 49690, 49696 PONYNETUS United States 32->88 90 4 other IPs or domains 32->90 72 C:\ProgramData\RuntimeBrokerData\svhost.exe, PE32+ 32->72 dropped 74 C:\ProgramData\...\WinRing0x64.sys, PE32+ 32->74 dropped 76 C:\ProgramData\...\RuntimeBroker.exe, PE32 32->76 dropped 78 2 other malicious files 32->78 dropped 108 Antivirus detection for dropped file 32->108 110 Multi AV Scanner detection for dropped file 32->110 112 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 32->112 114 3 other signatures 32->114 45 cmd.exe 32->45         started        48 cmd.exe 1 32->48         started        50 cmd.exe 32->50         started        52 13 other processes 32->52 file14 signatures15 process16 signatures17 154 Modifies power options to not sleep / hibernate 45->154 68 7 other processes 45->68 156 Encrypted powershell cmdline option found 48->156 54 conhost.exe 48->54         started        56 powershell.exe 48->56         started        58 conhost.exe 50->58         started        60 schtasks.exe 50->60         started        62 conhost.exe 52->62         started        64 schtasks.exe 52->64         started        66 conhost.exe 52->66         started        70 21 other processes 52->70 process18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c4bef3d8e2b5a1741edbcbaf6b3bcc04a352835094fa20ba64499228fc51b4ba/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2022-12-29 18:40:09 UTC
File Type:
PE (Exe)
Extracted files:
90
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ys7phwhcwwqxihw3zoxwwo6masrvfa2qst5cbotejgjcr7crws5a._file
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar botnet:24 discovery spyware stealer
Link:
https://tria.ge/reports/221229-xa7xwadg33/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Vidar
Malware Config
C2 Extraction:
https://t.me/robloxblackl
https://steamcommunity.com/profiles/76561199458928097
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c617923f-ab8c-4d1a-947c-d2c468e3f134
Unpacked files
SH256 hash:
8cf72857269772f4b98395910e6743549604d108b2fa574ff8f180d3183e3daa
MD5 hash:
8c7ce76251bbc932947751a714678ab8
SHA1 hash:
1f49df9e18ce1f1195049c1913fc6b1ae86ae722
Link:
https://www.unpac.me/results/c62f03e0-e9d5-49e7-b331-78faebaabba2/
SH256 hash:
c4bef3d8e2b5a1741edbcbaf6b3bcc04a352835094fa20ba64499228fc51b4ba
MD5 hash:
1c9551a472fef104be9c8615b501c396
SHA1 hash:
66072915f42343b7b656e9ec26b16f600e13ce86
Link:
https://www.unpac.me/results/c62f03e0-e9d5-49e7-b331-78faebaabba2/
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/c4bef3d8e2b5a1741edbcbaf6b3bcc04a352835094fa20ba64499228fc51b4ba

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:Telegram_Links
Create hunting rule
Rule name:Windows_Trojan_Smokeloader_3687686f
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.

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by
  
URLhaus
https://urlhaus.abuse.ch/url/2485201/

Comments