MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b89a91ae384c7da7d724d20cce8d136d936c116556a0af66343f7b32de58fe90. 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


zgRAT


Vendor detections: 14


Intelligence 14 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b89a91ae384c7da7d724d20cce8d136d936c116556a0af66343f7b32de58fe90
SHA3-384 hash: 9d0a7cd5f71145863da1751dc9cd4c63e00fbeb8367b8f8ecb5915c8e0545d19b2b07654e0383b5d6fb345d1d79344fa
SHA1 hash: 8beac6e429aa8bae98d54c11a229dd34905f7f87
MD5 hash: 46ad7ff399264c9728195cb0a2a617ab
humanhash: princess-bacon-purple-oxygen
File name:REF-018012024051.exe
Download: download sample
Signature zgRAT
Create hunting rule
File size:1'313'792 bytes
First seen:2024-01-18 20:55:42 UTC
Last seen:2024-01-18 22:36:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:X3JrNaiiy9rT9zlKjWaspFsx2zCDuDG2GJBmK:X38aplKaaspqQzFw5
TLSH T1E155015BB921A3A0E7E48872EA0BE6720A155C9F590250A337F8BF273FFD527D645130
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 0eda80a2a280a2c0 (1 x Formbook, 1 x RemcosRAT, 1 x zgRAT)
Reporter abuse_ch
Tags:exe zgRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
437
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
b89a91ae384c7da7d724d20cce8d136d936c116556a0af66343f7b32de58fe90.exe
Verdict:
Malicious activity
Analysis date:
2024-01-18 20:58:56 UTC
Tags:
rat remcos remote stealer
Link:
https://app.any.run/tasks/537a0b47-9301-45d6-976f-3b1951673481

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/471569/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.24307.20608.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Sending a custom TCP request
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed remcos
Link:
https://www.filescan.io/uploads/65a99063784d3498d74186ad/reports/aab8abc6-61b5-4f5f-a744-2bbd59047cb9/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/b89a91ae384c7da7d724d20cce8d136d936c116556a0af66343f7b32de58fe90
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/297b2402-7690-43ad-84c6-1af40d3e695c
Result
Threat name:
Remcos, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1377044
Signature
.NET source code contains potential unpacker
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 bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
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 steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Yara detected Costura Assembly Loader
Yara detected PureLog Stealer
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1377044 Sample: REF-018012024051.exe Startdate: 18/01/2024 Architecture: WINDOWS Score: 100 41 geoplugin.net 2->41 43 aideca.org.pe 2->43 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Antivirus detection for URL or domain 2->55 57 11 other signatures 2->57 9 REF-018012024051.exe 16 5 2->9         started        14 Njkwhr.exe 14 4 2->14         started        16 Njkwhr.exe 2->16         started        signatures3 process4 dnsIp5 49 aideca.org.pe 161.132.46.17, 443, 49704, 49719 RedCientificaPeruanaPE Peru 9->49 39 C:\Users\user\AppData\Roaming39jkwhr.exe, PE32 9->39 dropped 61 Tries to steal Mail credentials (via file registry) 9->61 63 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->63 65 Injects a PE file into a foreign processes 9->65 18 REF-018012024051.exe 3 13 9->18         started        67 Antivirus detection for dropped file 14->67 69 Multi AV Scanner detection for dropped file 14->69 71 Contains functionality to bypass UAC (CMSTPLUA) 14->71 73 6 other signatures 14->73 22 Njkwhr.exe 14->22         started        24 Njkwhr.exe 14->24         started        26 Njkwhr.exe 14->26         started        file6 signatures7 process8 dnsIp9 45 64.188.20.177, 1053, 49713, 49714 ASN-QUADRANET-GLOBALUS United States 18->45 47 geoplugin.net 178.237.33.50, 49715, 80 ATOM86-ASATOM86NL Netherlands 18->47 59 Maps a DLL or memory area into another process 18->59 28 REF-018012024051.exe 1 18->28         started        31 REF-018012024051.exe 1 18->31         started        33 REF-018012024051.exe 1 18->33         started        35 3 other processes 18->35 signatures10 process11 signatures12 75 Tries to steal Instant Messenger accounts or passwords 28->75 77 Tries to harvest and steal browser information (history, passwords, etc) 28->77 79 Tries to steal Mail credentials (via file / registry access) 31->79 37 WerFault.exe 19 18 35->37         started        process13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b89a91ae384c7da7d724d20cce8d136d936c116556a0af66343f7b32de58fe90
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b89a91ae384c7da7d724d20cce8d136d936c116556a0af66343f7b32de58fe90/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2024-01-18 15:00:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
46
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xcnjdlryjr62pvze2igm5ditnwjwyelfk2qk6zruh55tfxsy72ia._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:remcos family:zgrat botnet:emk collection persistence rat spyware stealer
Link:
https://tria.ge/reports/240118-zqz83shhe5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Detect ZGRat V1
Remcos
ZGRat
Malware Config
C2 Extraction:
64.188.20.177:1053
Unpacked files
SH256 hash:
b89a91ae384c7da7d724d20cce8d136d936c116556a0af66343f7b32de58fe90
MD5 hash:
46ad7ff399264c9728195cb0a2a617ab
SHA1 hash:
8beac6e429aa8bae98d54c11a229dd34905f7f87
Link:
https://www.unpac.me/results/a25dff49-4c7f-46a5-a340-2fb5f1cdf8e3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
zgRAT
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b89a91ae384c7da7d724d20cce8d136d936c116556a0af66343f7b32de58fe90

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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.

Malspam

zgRAT

Executable exe b89a91ae384c7da7d724d20cce8d136d936c116556a0af66343f7b32de58fe90

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/471569/

Comments