MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2bcf679e7fc77e8a68ba1150a4e201450b921ead9aa011dbbaf846a2f9eaa10. 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: 10


Intelligence 10 IOCs YARA File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b2bcf679e7fc77e8a68ba1150a4e201450b921ead9aa011dbbaf846a2f9eaa10
SHA3-384 hash: dd4ef03fc51ff5d1ee857794b3279b64fef618c20522b0b1176483ce38e71a20f0f9361fa819d69484104355221f652a
SHA1 hash: c7a536e73ba8a913797aef7e1dd0331e6ebb10d9
MD5 hash: bb755de2c68699bf2f0935408f20dbf5
humanhash: angel-utah-fourteen-washington
File name:bb755de2c68699bf2f0935408f20dbf5
Download: download sample
Signature ArkeiStealer
Create hunting rule
File size:238'080 bytes
First seen:2021-10-21 22:38:10 UTC
Last seen:2021-10-22 00:08:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 96eae633c3835f4142e00d18fc3a156d (6 x RedLineStealer, 1 x ArkeiStealer, 1 x Smoke Loader)
ssdeep 6144:ngxInv9KvT3MOO3mH5diTCKgaIADG8el:nGInlYiTCmxD
Threatray 5'512 similar samples on MalwareBazaar
TLSH T1FC349D9932D8D9B4D0A60530883587E4172ABC6179207577F3BB36AFEEF82C09D25397
File icon (PE):PE icon
dhash icon fcfcd4d4d4d4d8c0 (75 x RedLineStealer, 56 x RaccoonStealer, 23 x Smoke Loader)
Reporter zbetcheckin
Tags:32 ArkeiStealer exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
159
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Vidar
Create hunting rule
Link:
https://www.capesandbox.com/analysis/199200/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware1.14891.6294.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/6171ec089a5a1e91c5cccdf0/reports/0dfe9a59-b833-4368-b8fb-9d9092316b5e/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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b8a10c54-5123-4c5b-a2a3-9237867ecfa1
Result
Threat name:
SmokeLoader Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/874905
Signature
Benign windows process drops PE files
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Connects to many ports of the same IP (likely port scanning)
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
DLL reload attack detected
Found many strings related to Crypto-Wallets (likely being stolen)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Renames NTDLL to bypass HIPS
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: MSHTA Spawning Windows Shell
Sigma detected: Suspicious MSHTA Process Patterns
System process connects to network (likely due to code injection or exploit)
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
Yara detected SmokeLoader
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 507333 Sample: DYzIKnOp4R Startdate: 22/10/2021 Architecture: WINDOWS Score: 100 78 Multi AV Scanner detection for submitted file 2->78 80 Yara detected Vidar 2->80 82 Yara detected SmokeLoader 2->82 84 10 other signatures 2->84 10 DYzIKnOp4R.exe 1 2->10         started        13 egfjuwv 1 2->13         started        process3 file4 112 DLL reload attack detected 10->112 114 Detected unpacking (changes PE section rights) 10->114 116 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 10->116 124 2 other signatures 10->124 16 explorer.exe 10 10->16 injected 60 C:\Users\user\AppData\Local\Temp\1105.tmp, PE32 13->60 dropped 118 Machine Learning detection for dropped file 13->118 120 Renames NTDLL to bypass HIPS 13->120 122 Maps a DLL or memory area into another process 13->122 signatures5 process6 dnsIp7 62 nusurtal4f.net 5.61.34.153, 49756, 80 LEASEWEB-DE-FRA-10DE United Kingdom 16->62 64 bitbucket.org 104.192.141.1, 443, 49757 AMAZON-02US United States 16->64 66 3 other IPs or domains 16->66 42 C:\Users\user\AppData\Roaming\egfjuwv, PE32 16->42 dropped 44 C:\Users\user\AppData\Local\Temp\6EDD.exe, PE32 16->44 dropped 46 C:\Users\user\AppData\Local\Temp\6AF4.exe, PE32 16->46 dropped 48 3 other malicious files 16->48 dropped 86 System process connects to network (likely due to code injection or exploit) 16->86 88 Benign windows process drops PE files 16->88 90 Deletes itself after installation 16->90 92 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->92 21 6091.exe 3 16->21         started        25 65B3.exe 74 16->25         started        28 6AF4.exe 8 16->28         started        30 6EDD.exe 14 4 16->30         started        file8 signatures9 process10 dnsIp11 68 2.56.214.190, 49780, 59628 MVPShttpswwwmvpsnetEU Netherlands 21->68 96 Detected unpacking (changes PE section rights) 21->96 98 Detected unpacking (overwrites its own PE header) 21->98 100 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 21->100 102 Tries to steal Crypto Currency Wallets 21->102 70 mas.to 88.99.75.82, 443, 49759 HETZNER-ASDE Germany 25->70 72 65.108.80.190, 49760, 80 ALABANZA-BALTUS United States 25->72 52 C:\Users\user\AppData\...\softokn3[1].dll, PE32 25->52 dropped 54 C:\Users\user\AppData\...\mozglue[1].dll, PE32 25->54 dropped 56 C:\Users\user\AppData\...\freebl3[1].dll, PE32 25->56 dropped 58 9 other files (none is malicious) 25->58 dropped 104 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 25->104 106 Machine Learning detection for dropped file 25->106 108 Tries to harvest and steal browser information (history, passwords, etc) 25->108 32 mshta.exe 28->32         started        74 185.215.113.94, 35535, 49764 WHOLESALECONNECTIONSNL Portugal 30->74 76 cdn.discordapp.com 162.159.134.233, 443, 49761 CLOUDFLARENETUS United States 30->76 110 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 30->110 file12 signatures13 process14 process15 34 cmd.exe 32->34         started        file16 50 C:\Users\user\AppData\...\FNY67C5U6Wct5h.EXe, PE32 34->50 dropped 37 FNY67C5U6Wct5h.EXe 34->37         started        40 conhost.exe 34->40         started        process17 signatures18 94 Machine Learning detection for dropped file 37->94
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b2bcf679e7fc77e8a68ba1150a4e201450b921ead9aa011dbbaf846a2f9eaa10/
Threat name:
Win32.Trojan.Fragtor
Create hunting rule
Status:
Malicious
First seen:
2021-10-21 22:39:05 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
4ce736beca7ebfdae1fca1c504ef9482ada58dbf573fd57434aef6de2b36c9d6
ArkeiStealer
736b919068232acf7aae67e3ca5e915c89faade4110b31ff75c249ade1991ef6
ArkeiStealer
79df67c7efab39b9b413c0844b58b8597c32ff7870225bbc1d2e300416ec5b4e
ArkeiStealer
7dc5a00ea0996d4edb8fbee2a9d2caa97ece60b4d5f755c3e82a06205ee2a385
ArkeiStealer
9664922ce8e322f3e2902a458b8a00f19515d2cd9c5802482e4e2d40fce8b861
ArkeiStealer
a98b37b337927ef6cea8a053a4ea676646de4dfbf6ce9619593246a1ecc362b6
ArkeiStealer
c95d04ae659ff27da971c970ec072ffbec37551120fe8c395d5455fba4139d0d
ArkeiStealer
f4f625c6ec130389122077c9650b1c195a7793a173a621416cea8622c14405fc
ArkeiStealer
fe7e25d0fd410494f9d8299439faf7d89edb627b494c882d2b33c94625c7c35c
ArkeiStealer
+ 5'502 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:redline family:smokeloader family:vidar botnet:517 botnet:706 botnet:btc-2021 botnet:slovarikinstalls backdoor discovery infostealer persistence ransomware spyware stealer suricata trojan
Link:
https://tria.ge/reports/211021-2kyjeabgdn/
Behaviour
Checks SCSI registry key(s)
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 behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Deletes itself
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Vidar Stealer
Detected Djvu ransomware
Djvu Ransomware
RedLine
RedLine Payload
SmokeLoader
Vidar
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
Malware Config
C2 Extraction:
http://nusurtal4f.net/
http://netomishnetojuk.net/
http://escalivrouter.net/
http://nick22doom4.net/
http://wrioshtivsio.su/
http://nusotiso4.su/
http://rickkhtovkka.biz/
http://palisotoliso.net/
https://mas.to/@xeroxxx
185.215.113.94:35535
http://rlrz.org/lancer
2.56.214.190:59628
Unpacked files
SH256 hash:
bfc885ce74d24de6155e7460de32e940ef49b822f26d588310f519ad837ffbd6
MD5 hash:
4412c75f00dc6572efb3e171c4642f5c
SHA1 hash:
018a5a75ff828f4de3d1eae5735cf748beead94c
Link:
https://www.unpac.me/results/b1fa4f68-92d6-425e-a566-dd317a5aed84/
SH256 hash:
b2bcf679e7fc77e8a68ba1150a4e201450b921ead9aa011dbbaf846a2f9eaa10
MD5 hash:
bb755de2c68699bf2f0935408f20dbf5
SHA1 hash:
c7a536e73ba8a913797aef7e1dd0331e6ebb10d9
Link:
https://www.unpac.me/results/b1fa4f68-92d6-425e-a566-dd317a5aed84/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b2bcf679e7fc/report/overview.html
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/b2bcf679e7fc77e8a68ba1150a4e201450b921ead9aa011dbbaf846a2f9eaa10

File information

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

Web download

ArkeiStealer

Executable exe b2bcf679e7fc77e8a68ba1150a4e201450b921ead9aa011dbbaf846a2f9eaa10

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1706192/
Cape
Cape
https://www.capesandbox.com/analysis/199200/

Comments


Avatar
zbet commented on 2021-10-21 22:38:11 UTC

url : hxxp://5.61.36.180/data.exe