MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1923ce6f95ba7e57b9d8ea27c1867283cacbc992a0f9e16ec9dd864930d9d71. 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


ArrowRAT


Vendor detections: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1923ce6f95ba7e57b9d8ea27c1867283cacbc992a0f9e16ec9dd864930d9d71
SHA3-384 hash: 478d95cee1c9390a8393ea482d1308dd2627769f478184dc95813c957c8aad76a7290d17428b67a70f391b3c98f549c4
SHA1 hash: 28887e5a7c28661db7b3d4da3612bafd05604813
MD5 hash: 286de0123129cb1bdb0533301f435746
humanhash: arkansas-triple-blue-salami
File name:lib32.exe
Download: download sample
Signature ArrowRAT
Create hunting rule
File size:2'302'976 bytes
First seen:2022-12-07 05:35:23 UTC
Last seen:2022-12-07 08:33:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 49152:IhgaZCojYG3CmQYbfHxDJ6aiyc7jntoe:IhggwdY7d0tV
TLSH T153B57CC2015BCB259A481AB06C514DDD3A81F3A198482F56E43CB9BDFF4B52B84BF3D9
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 4a696ddce4f4f261 (26 x Gozi, 9 x AgentTesla, 3 x FFDroider)
Reporter JAMESWT_WT
Tags:ArrowRAT exe github-com-alibaba2044

Intelligence

File Origin
# of uploads :
2
# of downloads :
204
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
lib32.exe
Verdict:
Malicious activity
Analysis date:
2022-12-07 05:37:33 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/07369542-ab7a-41a1-aaeb-600004e913c3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
DLAgent10 Downloader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/343711/
Detection(s):
SecuriteInfo.com.Win32.RATX-gen.32707.30032.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
stealer
Link:
https://www.filescan.io/uploads/6390264375655a0108ea754f/reports/953df478-948a-47e7-97f9-79f3d6ba71de/overview
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/c0d1618a-7855-4021-aa59-9cdc6a10f985
Result
Threat name:
ArrowRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1129605
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Drops executable to a common third party application directory
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to harvest and steal browser information (history, passwords, etc)
Writes to foreign memory regions
Yara detected ArrowRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 762329 Sample: lib32.exe Startdate: 07/12/2022 Architecture: WINDOWS Score: 100 61 Antivirus detection for URL or domain 2->61 63 Antivirus / Scanner detection for submitted sample 2->63 65 Multi AV Scanner detection for submitted file 2->65 67 7 other signatures 2->67 8 lib32.exe 1 5 2->8         started        12 update.exe 2 2->12         started        14 update.exe 2->14         started        16 explorer.exe 5 4 2->16         started        process3 file4 53 C:\Users\user\AppData\Roaming\...\update.exe, PE32 8->53 dropped 55 C:\Users\user\...\update.exe:Zone.Identifier, ASCII 8->55 dropped 57 C:\Users\user\AppData\Local\...\lib32.exe.log, ASCII 8->57 dropped 77 Encrypted powershell cmdline option found 8->77 79 Drops executable to a common third party application directory 8->79 81 Injects a PE file into a foreign processes 8->81 18 lib32.exe 2 8->18         started        21 powershell.exe 16 8->21         started        83 Antivirus detection for dropped file 12->83 85 Multi AV Scanner detection for dropped file 12->85 87 Machine Learning detection for dropped file 12->87 23 update.exe 12->23         started        25 powershell.exe 12->25         started        27 update.exe 12->27         started        29 update.exe 12->29         started        31 powershell.exe 14->31         started        signatures5 process6 signatures7 69 Writes to foreign memory regions 18->69 71 Allocates memory in foreign processes 18->71 73 Injects a PE file into a foreign processes 18->73 33 cvtres.exe 4 18->33         started        37 explorer.exe 18->37         started        39 conhost.exe 21->39         started        41 cvtres.exe 23->41         started        43 explorer.exe 23->43         started        45 conhost.exe 25->45         started        47 conhost.exe 31->47         started        process8 dnsIp9 59 185.246.221.202, 17168, 49718, 49719 LVLT-10753US Germany 33->59 75 Tries to harvest and steal browser information (history, passwords, etc) 33->75 49 conhost.exe 33->49         started        51 conhost.exe 41->51         started        signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a1923ce6f95ba7e57b9d8ea27c1867283cacbc992a0f9e16ec9dd864930d9d71/
Threat name:
ByteCode-MSIL.Trojan.Lazy
Create hunting rule
Status:
Malicious
First seen:
2022-12-07 05:23:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
10 of 41 (24.39%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ugjdzzxzlot6k645r2rhygdhfa6kzpezfihz4fxmtxmgjeyntvyq._file
Verdict:
malicious
Result
Malware family:
arrowrat
Create hunting rule
Score:
  10/10
Tags:
family:arrowrat botnet:client persistence rat
Link:
https://tria.ge/reports/221207-gakvcahf55/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Modifies Installed Components in the registry
ArrowRat
Malware Config
C2 Extraction:
185.246.221.202:17168
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7df7acc8-8ace-4be1-bbd5-f6c5832a012d
Unpacked files
SH256 hash:
76a0498ce4453ffe4a287369e9122de25bac49e1de3f54d7bfde455476d0b177
MD5 hash:
f75a08fe9b2b8c2d52f2841d61cec027
SHA1 hash:
0c1f401c5a09af57344f5018963031e632d53572
Link:
https://www.unpac.me/results/a40be70f-aeda-4d50-9a5b-bc5002b4c746/
SH256 hash:
df84a92627f25180b78db8c158a2585db996284e41807aefc627490f2a016015
MD5 hash:
e51866131da0230356064fa548db6ffe
SHA1 hash:
69356d1fe67a17073fc97f2afa9b7ba02b6e330d
Link:
https://www.unpac.me/results/a40be70f-aeda-4d50-9a5b-bc5002b4c746/
SH256 hash:
8cbd616ef16c05c75339e4be7ff3a8ad7bf89b1b68a40a3753c281a1a02bc2a4
MD5 hash:
bd35a1e8731917f39622a989877b98fd
SHA1 hash:
462ce2bbec7b6d0cbc9200fef1a176897c2b275e
Link:
https://www.unpac.me/results/a40be70f-aeda-4d50-9a5b-bc5002b4c746/
SH256 hash:
a1923ce6f95ba7e57b9d8ea27c1867283cacbc992a0f9e16ec9dd864930d9d71
MD5 hash:
286de0123129cb1bdb0533301f435746
SHA1 hash:
28887e5a7c28661db7b3d4da3612bafd05604813
Link:
https://www.unpac.me/results/a40be70f-aeda-4d50-9a5b-bc5002b4c746/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a1923ce6f95b/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/a1923ce6f95ba7e57b9d8ea27c1867283cacbc992a0f9e16ec9dd864930d9d71

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/343711/

Comments