MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7e8b6d72b9f5e62dee5566641291d9d2a9ec6eb965da7cdb35b3aa6001aec2a4. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7e8b6d72b9f5e62dee5566641291d9d2a9ec6eb965da7cdb35b3aa6001aec2a4
SHA3-384 hash: f2ea4a0887758e9670e68087d4334d1f7917422f1d57831495e9019fce00af8d83f29b9d3484bf30c7237236f71b9434
SHA1 hash: 11a0983fc8ba6ac6dfbe45e5b5a70e9acb3d182b
MD5 hash: 8652b1a2fe37ec2fc93ed5e131a64b8c
humanhash: july-delaware-mike-maryland
File name:Reooxtssf.exe
Download: download sample
Signature zgRAT
Create hunting rule
File size:857'088 bytes
First seen:2023-12-13 12:47:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:tgaXSSFOEm4h3Kriv59FhfOmqcY1awr8T0aonMGyS:qaXSSzmy6EvfOmrMawr8Ia0MGyS
Threatray 4'260 similar samples on MalwareBazaar
TLSH T10B05E0B532234E16CBA2A7B58A73A7020950FD3B9466D307E3C4717F602B1AF5BA1747
TrID 56.5% (.EXE) Win64 Executable (generic) (10523/12/4)
11.0% (.ICL) Windows Icons Library (generic) (2059/9)
10.9% (.EXE) OS/2 Executable (generic) (2029/13)
10.7% (.EXE) Generic Win/DOS Executable (2002/3)
10.7% (.EXE) DOS Executable Generic (2000/1)
File icon (PE):PE icon
dhash icon 34ecccd4e8f4d4d4 (3 x AgentTesla, 2 x AveMariaRAT, 2 x zgRAT)
Reporter abuse_ch
Tags:exe zgRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
336
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Reooxtssf.exe
Verdict:
Suspicious activity
Analysis date:
2023-12-13 13:08:57 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/01524f3e-7beb-45e9-a313-8fba035ac0cf

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/467207/
Detection(s):
Win.Trojan.EmbeddedDotNetBinary-9940868-0
Create hunting rule

Win.Trojan.EmbeddedReversedDLL-9940922-0
Create hunting rule

Win.Trojan.Generic-10014419-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6579a80f3636548f374e1026/reports/84000332-bca9-4243-b155-ccff9ff29edc/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/7e8b6d72b9f5e62dee5566641291d9d2a9ec6eb965da7cdb35b3aa6001aec2a4
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:
Malicious
Link:
https://analyze.intezer.com/analyses/e73f4e7e-eab0-4c3a-8649-067c43b14ca1
Result
Threat name:
DarkCloud, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1361407
Signature
.NET source code contains potential unpacker
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses ipconfig to lookup or modify the Windows network settings
Yara detected Costura Assembly Loader
Yara detected DarkCloud
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1361407 Sample: Reooxtssf.exe Startdate: 13/12/2023 Architecture: WINDOWS Score: 88 54 Malicious sample detected (through community Yara rule) 2->54 56 Yara detected PureLog Stealer 2->56 58 Yara detected DarkCloud 2->58 60 3 other signatures 2->60 7 Reooxtssf.exe 1 4 2->7         started        11 WindowApp.exe 4 2->11         started        13 WindowApp.exe 3 2->13         started        process3 file4 52 C:\Users\user\AppData\Roaming\WindowApp.exe, PE32+ 7->52 dropped 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->62 15 cmd.exe 1 7->15         started        18 cmd.exe 1 7->18         started        28 10 other processes 7->28 64 Machine Learning detection for dropped file 11->64 20 cmd.exe 1 11->20         started        22 cmd.exe 1 11->22         started        30 10 other processes 11->30 24 cmd.exe 1 13->24         started        26 cmd.exe 1 13->26         started        32 7 other processes 13->32 signatures5 process6 signatures7 66 Uses ipconfig to lookup or modify the Windows network settings 15->66 34 conhost.exe 15->34         started        36 ipconfig.exe 1 15->36         started        38 conhost.exe 18->38         started        40 ipconfig.exe 1 18->40         started        42 conhost.exe 20->42         started        44 ipconfig.exe 1 20->44         started        46 2 other processes 22->46 48 2 other processes 24->48 50 2 other processes 26->50 process8
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/7e8b6d72b9f5e62dee5566641291d9d2a9ec6eb965da7cdb35b3aa6001aec2a4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7e8b6d72b9f5e62dee5566641291d9d2a9ec6eb965da7cdb35b3aa6001aec2a4/
Threat name:
ByteCode-MSIL.Trojan.Seraph
Create hunting rule
Status:
Malicious
First seen:
2023-12-12 21:39:03 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
5
AV detection:
17 of 22 (77.27%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=p2fw24vz6xtc33svmzsbfeoz2ku6y3vzmxnhzwzvwovgaanoyksa._file
Verdict:
malicious
Similar samples:
290088af7827bb86a2296dfca27558807ce55ebb4ba995fa2c18a394d3e39f93
zgRAT
768aadddf48f4b9789212f00e5ed2fbb4ec27702d38c9013bf10b89f7a28a12c
zgRAT
7e8b6d72b9f5e62dee5566641291d9d2a9ec6eb965da7cdb35b3aa6001aec2a4
zgRAT
8252f99b0f6c26c5c6360c896b26d2acf273ec3c68cf2d883fce4727fe926237
zgRAT
9308672369748963a12d1fda1ad2151df4c8b6b8a092bd72eab3fe13d6fb86cf
zgRAT
d0f93d98529b19fc436ea00567f23e9e012d440669b8e728e17d8d8e20a147cd
zgRAT
f8ee8795b3fd842a279823aa8925cb2c681457194f6d0bb5e392ab1b24d360fb
zgRAT
+ 4'250 additional samples on MalwareBazaar
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:zgrat persistence rat
Link:
https://tria.ge/reports/231213-p1r1caecf8/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Checks computer location settings
Detect ZGRat V1
ZGRat
Unpacked files
SH256 hash:
7e8b6d72b9f5e62dee5566641291d9d2a9ec6eb965da7cdb35b3aa6001aec2a4
MD5 hash:
8652b1a2fe37ec2fc93ed5e131a64b8c
SHA1 hash:
11a0983fc8ba6ac6dfbe45e5b5a70e9acb3d182b
Detections:
Typical_Malware_String_Transforms
Create hunting rule
Link:
https://www.unpac.me/results/c8f1673b-2b01-4a74-a7ed-b7d83ab7e073/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/7e8b6d72b9f5e62dee5566641291d9d2a9ec6eb965da7cdb35b3aa6001aec2a4

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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
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
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information

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

Malspam

zgRAT

Executable exe 7e8b6d72b9f5e62dee5566641291d9d2a9ec6eb965da7cdb35b3aa6001aec2a4

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/467207/

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