MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a0ac775ecbfa0ab3218e32b09a0d4fdcd82e7ceaa31241dc106c4fc77e9b5ddb. 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: 9


Intelligence 9 IOCs 1 YARA 5 File information Comments 1

SHA256 hash: a0ac775ecbfa0ab3218e32b09a0d4fdcd82e7ceaa31241dc106c4fc77e9b5ddb
SHA3-384 hash: a763c202cf95b3572963ac79626589cb7d507fd53109774fe466b16103bf5a022284f822225b8cdd9212fb3e0fac7bd0
SHA1 hash: a93020433248c8e34b104922a0e0667609c700db
MD5 hash: cdc95f7c10cc944d1b9c48f551cad3e0
humanhash: pasta-cold-four-nebraska
File name:CDC95F7C10CC944D1B9C48F551CAD3E0.exe
Download: download sample
Signature ArkeiStealer
File size:3'811'990 bytes
First seen:2021-04-19 12:40:28 UTC
Last seen:2021-04-19 14:25:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b1f273e55d954a3cd6ab7388915a0485 (3 x Neurevt, 3 x RedLineStealer, 2 x ArkeiStealer)
ssdeep 49152:0zOJB5ZJBK7/stk6SY6stAHzUfj7a3MTP4s5c8OrT9j4NNha3:0KBtKzatHa4j5c8iTyNNhE
Threatray 636 similar samples on MalwareBazaar
TLSH 52067D237289603EC06639B68527D664983F7F626912CC4B67F47D4CAF35142EE3A60F
Reporter abuse_ch
Tags:ArkeiStealer exe


Avatar
abuse_ch
ArkeiStealer C2:
http://88.198.106.10/

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://88.198.106.10/ https://threatfox.abuse.ch/ioc/8994/

Intelligence


File Origin
# of uploads :
2
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CDC95F7C10CC944D1B9C48F551CAD3E0.exe
Verdict:
Malicious activity
Analysis date:
2021-04-19 12:50:18 UTC
Tags:
installer trojan stealer vidar loader

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

Behaviour
Replacing files
Reading critical registry keys
Delayed writing of the file
Sending a UDP request
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Searching for the window
Launching a process
Creating a window
Creating a file in the %temp% subdirectories
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
DNS request
Sending a custom TCP request
Creating a file
Connection attempt
Sending an HTTP GET request
Deleting a recently created file
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Launching a tool to kill processes
Forced shutdown of a browser
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.
Result
Threat name:
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Signature
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Multi AV Scanner detection for submitted file
Tries to harvest and steal Bitcoin Wallet information
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
Tries to steal Instant Messenger accounts or passwords
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 392373 Sample: TYdzcrJ1Th.exe Startdate: 19/04/2021 Architecture: WINDOWS Score: 100 50 Found malware configuration 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 Yara detected Vidar stealer 2->54 56 Found many strings related to Crypto-Wallets (likely being stolen) 2->56 9 TYdzcrJ1Th.exe 9 2->9         started        process3 file4 36 C:\Users\user\AppData\...\bingoboom.exe, PE32 9->36 dropped 12 bingoboom.exe 9->12         started        process5 signatures6 58 Detected unpacking (changes PE section rights) 12->58 60 Detected unpacking (overwrites its own PE header) 12->60 62 Machine Learning detection for dropped file 12->62 64 Injects a PE file into a foreign processes 12->64 15 bingoboom.exe 82 12->15         started        process7 dnsIp8 38 88.198.106.10, 49692, 80 HETZNER-ASDE Germany 15->38 40 api.faceit.com 104.17.63.50, 443, 49691 CLOUDFLARENETUS United States 15->40 28 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 15->28 dropped 30 C:\Users\user\AppData\...\freebl3[1].dll, PE32 15->30 dropped 32 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 15->32 dropped 34 9 other files (none is malicious) 15->34 dropped 42 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->42 44 Tries to steal Instant Messenger accounts or passwords 15->44 46 Tries to harvest and steal browser information (history, passwords, etc) 15->46 48 2 other signatures 15->48 20 cmd.exe 1 15->20         started        file9 signatures10 process11 process12 22 taskkill.exe 1 20->22         started        24 conhost.exe 20->24         started        26 timeout.exe 1 20->26         started       
Gathering data
Result
Malware family:
Score:
  10/10
Tags:
family:vidar discovery spyware stealer
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Kills process with taskkill
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Loads dropped DLL
Reads local data of messenger clients
Reads user/profile data of web browsers
Executes dropped EXE
Vidar
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:INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets
Author:ditekSHen
Description:Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers
Rule name:MALWARE_Win_Vidar
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
Rule name:Ping_Del_method_bin_mem
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:win_vidar_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:with_sqlite
Author:Julian J. Gonzalez <info@seguridadparatodos.es>
Description:Rule to detect the presence of SQLite data in raw image
Reference:http://www.st2labs.com

File information


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

Comments



Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-04-19 13:21:25 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0001.032] Anti-Behavioral Analysis::Timing/Delay Check GetTickCount
1) [B0009.012] Anti-Behavioral Analysis::Human User Check
2) [B0009.029] Anti-Behavioral Analysis::Instruction Testing
3) [F0002.002] Collection::Polling
5) [C0002.012] Communication Micro-objective::Create Request::HTTP Communication
6) [C0002.004] Communication Micro-objective::Open URL::HTTP Communication
7) [C0027.009] Cryptography Micro-objective::RC4::Encrypt Data
8) [C0021.004] Cryptography Micro-objective::RC4 PRGA::Generate Pseudo-random Sequence
9) [C0021] Cryptography Micro-objective::Generate Pseudo-random Sequence
10) [C0060] Data Micro-objective::Compression Library
11) [C0026.002] Data Micro-objective::XOR::Encode Data
13) [C0045] File System Micro-objective::Copy File
14) [C0046] File System Micro-objective::Create Directory
15) [C0048] File System Micro-objective::Delete Directory
16) [C0047] File System Micro-objective::Delete File
17) [C0049] File System Micro-objective::Get File Attributes
18) [C0051] File System Micro-objective::Read File
19) [C0050] File System Micro-objective::Set File Attributes
20) [C0052] File System Micro-objective::Writes File
21) [E1510] Impact::Clipboard Modification
22) [C0007] Memory Micro-objective::Allocate Memory
23) [C0036.004] Operating System Micro-objective::Create Registry Key::Registry
24) [C0036.002] Operating System Micro-objective::Delete Registry Key::Registry
25) [C0036.007] Operating System Micro-objective::Delete Registry Value::Registry
26) [C0036.003] Operating System Micro-objective::Open Registry Key::Registry
27) [C0036.005] Operating System Micro-objective::Query Registry Key::Registry
28) [C0036.006] Operating System Micro-objective::Query Registry Value::Registry
29) [C0036.001] Operating System Micro-objective::Set Registry Key::Registry
30) [C0017] Process Micro-objective::Create Process
31) [C0038] Process Micro-objective::Create Thread
32) [C0054] Process Micro-objective::Resume Thread
33) [C0041] Process Micro-objective::Set Thread Local Storage Value
34) [C0055] Process Micro-objective::Suspend Thread
35) [C0018] Process Micro-objective::Terminate Process