MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a66228e6a0b619a07070c311713d3630b53a89a3e7fdd4b871859e001e693329. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a66228e6a0b619a07070c311713d3630b53a89a3e7fdd4b871859e001e693329
SHA3-384 hash: e65809d21cabfe6f55c1379af597f397810ae1b4956e25afb5d81e8deb9f868356d9aab432ca9ffb2682517c35a7accd
SHA1 hash: ff01494d36906e30b4a53ff9862420a3922cf7a1
MD5 hash: b153a48172b1e3c4e93fdf40f704e4fa
humanhash: orange-neptune-stairway-april
File name:b153a48172b1e3c4e93fdf40f704e4fa.exe
Download: download sample
Signature ArkeiStealer
Create hunting rule
File size:2'294'784 bytes
First seen:2021-07-22 08:02:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:S62PqWtz+bEEiD5F8yPx1tWLSYsW4Cu39Ih32e4Vv5+c4/fkAlHipIIQxtVLmNXX:9EHE18
Threatray 1'922 similar samples on MalwareBazaar
TLSH T1B3B54B1869BFD01960B3FE916EDCA8FBDADE55E3240D743B109153178B22B81DE8B439
Reporter abuse_ch
Tags:ArkeiStealer exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
120
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b153a48172b1e3c4e93fdf40f704e4fa.exe
Verdict:
Suspicious activity
Analysis date:
2021-07-22 08:18:09 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/928bae1d-9436-4cee-8fa4-fe50a37c3d1a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Vidar
Create hunting rule
Link:
https://www.capesandbox.com/analysis/173258/
Detection(s):
Win.Packed.Redline-9876022-1
Create hunting rule

Win.Packed.Redline-9879939-1
Create hunting rule

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.
Malware family:
RedLine stealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/117c6efa-de52-47f2-866e-41769bedeb3f
Result
Threat name:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/820004
Signature
.NET source code contains very large strings
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Multi AV Scanner detection for submitted file
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 Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 452428 Sample: B5xK9XEvzO.exe Startdate: 22/07/2021 Architecture: WINDOWS Score: 96 43 Found malware configuration 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Yara detected Vidar 2->47 49 3 other signatures 2->49 8 B5xK9XEvzO.exe 2 2->8         started        process3 file4 27 C:\Users\user\AppData\...\B5xK9XEvzO.exe.log, ASCII 8->27 dropped 51 Injects a PE file into a foreign processes 8->51 12 B5xK9XEvzO.exe 92 8->12         started        17 conhost.exe 8->17         started        signatures5 process6 dnsIp7 37 116.202.183.50, 49709, 80 HETZNER-ASDE Germany 12->37 39 shpak125.tumblr.com 74.114.154.18, 443, 49707 AUTOMATTICUS Canada 12->39 41 192.168.2.1 unknown unknown 12->41 29 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 12->29 dropped 31 C:\Users\user\AppData\...\softokn3[1].dll, PE32 12->31 dropped 33 C:\Users\user\AppData\...\freebl3[1].dll, PE32 12->33 dropped 35 9 other files (none is malicious) 12->35 dropped 53 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->53 55 Tries to harvest and steal browser information (history, passwords, etc) 12->55 57 Tries to steal Crypto Currency Wallets 12->57 19 cmd.exe 1 12->19         started        file8 signatures9 process10 process11 21 taskkill.exe 1 19->21         started        23 conhost.exe 19->23         started        25 timeout.exe 1 19->25         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a66228e6a0b619a07070c311713d3630b53a89a3e7fdd4b871859e001e693329/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-07-21 18:48:07 UTC
AV detection:
21 of 46 (45.65%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
096e8c1a31c8f8f0238c812422b4298e0c77b5e77ae93250e4fae24758e7c574
ArkeiStealer
0a798e054fbe8545d4e1df781f3bb1a45b2fc58b5fb8d1c7383be8980aea829a
ArkeiStealer
1a1d8823b35b8c0d8dfcebe065520a07fe105589893262976fce4122317c55b8
ArkeiStealer
1caf2367b85edbe5a5330d1edee51ac80aaacb99529d98a22cf847381db56edf
ArkeiStealer
35e4eae543d8f615f6dc3aa780af21207171babf713ad3a4328ea5abefffff70
ArkeiStealer
474a473bf46fdbfb5a9344937674c1455d764e74c2cd8892da7d59f68ffadd5c
ArkeiStealer
8ed9f410b41e51f09304e5cdadc4d61f82562c9ee15be810e063f2f568812dd0
ArkeiStealer
b55dd061a60905c3a2208917883d326b08a3a7d1f8fdb94f78e6675375fc8219
ArkeiStealer
b8b2077a4b818a377153b24328151956d8b13a16bda54c82c9be894fa87eed91
ArkeiStealer
d4272fe57997732ba267f52ef06d823f9b186f91cf637a9795b6f161a5e79ef8
ArkeiStealer
+ 1'912 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar botnet:921 discovery spyware stealer
Link:
https://tria.ge/reports/210722-9k8bycgxt6/
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
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Vidar Stealer
Vidar
Malware Config
C2 Extraction:
https://shpak125.tumblr.com/
Unpacked files
SH256 hash:
1ebca3bb092ebef3bd52a7a0ef6e62f286f6c75a2bd226cb33b83dfae1511927
MD5 hash:
d35ace1be17d8a514fe076e40384ded7
SHA1 hash:
64102a7ffc474c1799cf5f07dc0d22191ca43100
Link:
https://www.unpac.me/results/8f028d6d-7286-43d1-ac0a-f55db44ffacf/
SH256 hash:
a66228e6a0b619a07070c311713d3630b53a89a3e7fdd4b871859e001e693329
MD5 hash:
b153a48172b1e3c4e93fdf40f704e4fa
SHA1 hash:
ff01494d36906e30b4a53ff9862420a3922cf7a1
Link:
https://www.unpac.me/results/8f028d6d-7286-43d1-ac0a-f55db44ffacf/
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/a66228e6a0b619a07070c311713d3630b53a89a3e7fdd4b871859e001e693329

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_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:INDICATOR_SUSPICOIUS_EXE_WindDefender_AntiEmaulation
Create hunting rule
Author:ditekSHen
Description:Detects executables containing potential Windows Defender anti-emulation checks
Rule name:MALWARE_Win_Vidar
Create hunting rule
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
Rule name:pe_imphash
Create hunting rule
Rule name:RedOctoberPluginCollectInfo
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Web download

ArkeiStealer

Executable exe a66228e6a0b619a07070c311713d3630b53a89a3e7fdd4b871859e001e693329

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1453954/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/173258/

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