MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1bf61e5d7a48ad3925a1ec20249e756d65b34a2e69170812911009c6b4e28ab. 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 1 YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1bf61e5d7a48ad3925a1ec20249e756d65b34a2e69170812911009c6b4e28ab
SHA3-384 hash: f2e27c4f1e4f0604aac6df8b6b96bdb946a11d51d27d1257e421cc4c28ad738d41fdb0391845f1893cc321fe84a0caeb
SHA1 hash: 03a4932af6d40c11c035ef925dc60146e91ece85
MD5 hash: 02892518516aed817405e4e67aef72b2
humanhash: timing-video-nitrogen-alanine
File name:03a4932af6d40c11c035ef925dc60146e91ece85.exe
Download: download sample
Signature ArkeiStealer
Create hunting rule
File size:5'011'968 bytes
First seen:2021-09-27 18:11:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'813 x AgentTesla, 19'735 x Formbook, 12'282 x SnakeKeylogger)
ssdeep 98304:AAp8eTen9YFlXmWzOTVojpcviKTHO/yBvi5FC:vprSn9QXmGOBoYiKTumii
Threatray 319 similar samples on MalwareBazaar
TLSH T1813669056302913170508F9589E67E1B5E341FAAB9918AC7CCA6955C2DE0FEFBEC3D2C
Reporter abuse_ch
Tags:ArkeiStealer exe


Avatar
abuse_ch
ArkeiStealer C2:
http://23.88.105.196/

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://23.88.105.196/ https://threatfox.abuse.ch/ioc/226961/

Intelligence

File Origin
# of uploads :
1
# of downloads :
204
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
03a4932af6d40c11c035ef925dc60146e91ece85.exe
Verdict:
Malicious activity
Analysis date:
2021-09-27 18:14:41 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/630045b5-c7ea-4999-b16c-23f08c4d4ce0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
DLInjector04
Create hunting rule
Link:
https://www.capesandbox.com/analysis/192249/
Detection(s):
SecuriteInfo.com.Trojan.MulDropNET.43.27304.15888.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Launching a process
Creating a window
Malware family:
CryptBot
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/760922bc-2342-4a7e-897b-f81d0b15db47
Result
Threat name:
BitCoin Miner RedLine Vidar Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/859278
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus detection for URL or domain
Connects to a pastebin service (likely for C&C)
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
DNS related to crypt mining pools
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Found strings related to Crypto-Mining
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Performs DNS queries to domains with low reputation
Sample is not signed and drops a device driver
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: MSHTA Spawning Windows Shell
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: Xmrig
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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)
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 schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected BitCoin Miner
Yara detected RedLine Stealer
Yara detected Vidar
Yara detected Vidar stealer
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 491710 Sample: 2mdb3OG6FM.exe Startdate: 27/09/2021 Architecture: WINDOWS Score: 100 83 c.goatgameh.com 2->83 85 ip-api.com 208.95.112.1, 49753, 80 TUT-ASUS United States 2->85 87 15 other IPs or domains 2->87 93 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->93 95 Sigma detected: Xmrig 2->95 97 Found malware configuration 2->97 101 25 other signatures 2->101 9 2mdb3OG6FM.exe 12 2->9         started        12 services64.exe 2->12         started        15 svchost.exe 2->15         started        signatures3 99 May check the online IP address of the machine 83->99 process4 file5 57 C:\Users\user\AppData\...\sfx_123_206.exe, PE32 9->57 dropped 59 C:\Users\user\AppData\...\oliver2109-c.exe, PE32 9->59 dropped 61 C:\Users\user\AppData\Local\Temp\jhuuee.exe, PE32+ 9->61 dropped 63 8 other files (3 malicious) 9->63 dropped 17 Chrome7.exe 5 9->17         started        21 Firstoffer.exe 74 9->21         started        24 PublicDwlBrowser1100.exe 15 5 9->24         started        26 4 other processes 9->26 117 Contains functionality to inject code into remote processes 12->117 signatures6 process7 dnsIp8 69 192.168.2.1 unknown unknown 17->69 41 C:\Users\user\AppData\...\services64.exe, PE32+ 17->41 dropped 28 services64.exe 17->28         started        33 cmd.exe 1 17->33         started        71 mas.to 88.99.75.82, 443, 49741 HETZNER-ASDE Germany 21->71 77 2 other IPs or domains 21->77 43 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 21->43 dropped 45 C:\Users\user\AppData\...\msvcp140[1].dll, PE32 21->45 dropped 47 C:\Users\user\AppData\...\freebl3[1].dll, PE32 21->47 dropped 55 9 other files (none is malicious) 21->55 dropped 103 Detected unpacking (changes PE section rights) 21->103 105 Detected unpacking (overwrites its own PE header) 21->105 107 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->107 115 2 other signatures 21->115 73 iplogger.org 88.99.66.31, 443, 49749, 49750 HETZNER-ASDE Germany 24->73 79 3 other IPs or domains 24->79 49 C:\ProgramData\3388747.exe, PE32 24->49 dropped 109 May check the online IP address of the machine 24->109 111 Performs DNS queries to domains with low reputation 24->111 75 194.145.227.161, 49783, 80 CLOUDPITDE Ukraine 26->75 81 2 other IPs or domains 26->81 51 C:\Users\user\AppData\Local\...\null[1], PE32 26->51 dropped 53 C:\Users\user\AppData\Local\...\null[1], PE32 26->53 dropped 113 Injects a PE file into a foreign processes 26->113 35 conhost.exe 26->35         started        file9 signatures10 process11 dnsIp12 89 sanctam.net 185.65.135.234, 49755, 58899 ESAB-ASSE Sweden 28->89 91 bitbucket.org 104.192.141.1, 443, 49756 AMAZON-02US United States 28->91 65 C:\Users\user\AppData\Roaming\...\WR64.sys, PE32+ 28->65 dropped 67 C:\Users\user\AppData\...\sihost64.exe, PE32+ 28->67 dropped 119 Injects code into the Windows Explorer (explorer.exe) 28->119 121 Writes to foreign memory regions 28->121 123 Allocates memory in foreign processes 28->123 127 3 other signatures 28->127 125 Uses schtasks.exe or at.exe to add and modify task schedules 33->125 37 conhost.exe 33->37         started        39 schtasks.exe 33->39         started        file13 signatures14 process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f1bf61e5d7a48ad3925a1ec20249e756d65b34a2e69170812911009c6b4e28ab/
Threat name:
ByteCode-MSIL.Backdoor.Mokes
Create hunting rule
Status:
Malicious
First seen:
2021-09-25 00:16:31 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6g7wdzoxusfnhes2d3baesphk3lfwnfc42ixbajjceajy22ofcvq._file
Verdict:
malicious
Similar samples:
0fc23c2e005cdfed1a0380dd7a06dda83b882f8d392c7f157b783822d21d78a1
ArkeiStealer
13492a113107ae59e2fe02f3c3b9afa411a39caa73b78ea06dec0fb9a970f7a2
ArkeiStealer
4cfbdd8acdc923beeca12d94f06d2f1632765434a2087df7ac803c254a0adf9c
ArkeiStealer
890db580fac738971bc7c714735ff6f1f2ee31edccd7881044da3e98452af664
ArkeiStealer
a5ae0f12308cd01e02c8c75137818f8945f4fba0785f5558c75bff2f20fb7957
ArkeiStealer
aa5e9ff271143c3cd205988c3100f1bb844d70d2930f04a2b2002e9c0951a74e
ArkeiStealer
b3c5e36f9aa05f6af9a685e32fe3e979a92ce5c96d5be130e7145b62c3948650
ArkeiStealer
b41de952a4fc93913cc56535c289c1cfd5b4c249477a0fad912956abf6b2293b
ArkeiStealer
b7915e2c423abfd40c013439cc726587a44fc207696637b2a431abce68963dd4
ArkeiStealer
ed6d502c7c263fd9bd28324f68b287aea158203d0c5154ca07a9bcd059aa2980
ArkeiStealer
+ 309 additional samples on MalwareBazaar
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:raccoon family:redline family:vidar family:xmrig botnet:513afceb3ed9a86ffb793952fba858cf607694c5 botnet:mix27.09 botnet:oliver2109 botnet:uts discovery evasion infostealer miner spyware stealer themida trojan
Link:
https://tria.ge/reports/210927-ws6xvshff8/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
Kills process with taskkill
Modifies Internet Explorer settings
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks whether UAC is enabled
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks BIOS information in registry
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Themida packer
Downloads MZ/PE file
Executes dropped EXE
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Vidar Stealer
XMRig Miner Payload
Raccoon
RedLine
RedLine Payload
Suspicious use of NtCreateProcessExOtherParentProcess
Vidar
xmrig
Malware Config
C2 Extraction:
45.9.20.20:13441
213.166.69.181:64650
185.215.113.15:6043
Dropper Extraction:
http://shellloader.top/welcome
Unpacked files
SH256 hash:
f1bf61e5d7a48ad3925a1ec20249e756d65b34a2e69170812911009c6b4e28ab
MD5 hash:
02892518516aed817405e4e67aef72b2
SHA1 hash:
03a4932af6d40c11c035ef925dc60146e91ece85
Link:
https://www.unpac.me/results/6fc80643-fae0-4650-abbe-d640176da9f2/
Malware family:
RedNet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/f1bf61e5d7a4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f1bf61e5d7a48ad3925a1ec20249e756d65b34a2e69170812911009c6b4e28ab

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_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
Create hunting rule
Author:ditekSHen
Description:Detects executables containing potential Windows Defender anti-emulation checks
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:MALWARE_Win_CryptBot
Create hunting rule
Author:ditekSHen
Description:CryptBot/Fugrafa stealer payload
Rule name:MALWARE_Win_RedLine
Create hunting rule
Author:ditekSHen
Description:Detects RedLine infostealer
Rule name:MALWARE_Win_Vidar
Create hunting rule
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:redline_stealer
Create hunting rule
Author:jeFF0Falltrades
Description:This rule matches unpacked RedLine Stealer samples and derivatives (as of APR2021)
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_XORed_Mozilla
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:Vidar
Create hunting rule
Author:kevoreilly
Description:Vidar Payload

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/192249/

Comments