MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27f599038343d5433f51dcff77ecf7f72256b21829e96b9ce71a7241466f0a7e. 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


BlankGrabber


Vendor detections: 9


Intelligence 9 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 27f599038343d5433f51dcff77ecf7f72256b21829e96b9ce71a7241466f0a7e
SHA3-384 hash: cfe6c7a963edf6df64fc26456ff80e155fee62528ed76bcdddeb69d7be241a3323a026b23e2f175f8ff6df53ae32d6c3
SHA1 hash: 895a20e58bdc3552bd130f3ae314b342f358ea4c
MD5 hash: 40f236182c70a8af8d8d2701c47603dd
humanhash: california-summer-utah-moon
File name:VIRUS_stub_ro_crasher.exe
Download: download sample
Signature BlankGrabber
Create hunting rule
File size:8'580'913 bytes
First seen:2023-09-07 20:46:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0b5552dccd9d0a834cea55c0c8fc05be (16 x LunaLogger, 16 x BlankGrabber, 8 x CrealStealer)
ssdeep 196608:BsY2OshoKMuIkhVastRL5Di3tnSEM9SPJc:mY2OshouIkPftRL540Joc
Threatray 15 similar samples on MalwareBazaar
TLSH T1A4863341A3A818EAF845D53EC5CA851AC773395527F0D58B0B9C87B60F2B1AA4C3BF47
TrID 90.1% (.CPL) Windows Control Panel Item (generic) (197083/11/60)
4.8% (.EXE) Win64 Executable (generic) (10523/12/4)
2.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
0.9% (.EXE) OS/2 Executable (generic) (2029/13)
0.9% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter fizi
Tags:BlankGrabber exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
305
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://cdn.discordapp.com/attachments/1146618622144413797/1146636337039020032/Ro_crasher.exe
Verdict:
No threats detected
Analysis date:
2023-08-31 02:54:58 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/55ad4c43-088a-4497-b309-ec65d4f2ea19

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/447284/
Detection(s):
SecuriteInfo.com.Win64.Evo-gen.24664.20878.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Restart of the analyzed sample
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
DNS request
Sending a custom TCP request
Searching for synchronization primitives
Creating a window
Launching a process
Launching the process to change network settings
Using the Windows Management Instrumentation requests
Adding an exclusion to Microsoft Defender
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control expand extrac32 greyware lolbin overlay packed
Link:
https://www.filescan.io/uploads/64fa36c897aced983321c9a1/reports/318b9f27-a97d-4a0a-a00a-0da0be815e82/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/27f599038343d5433f51dcff77ecf7f72256b21829e96b9ce71a7241466f0a7e
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/320437c7-2806-46fb-a418-1e49c4d8888d
Result
Threat name:
Blank Grabber
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1305795
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Bypasses PowerShell execution policy
DLL reload attack detected
DLL side loading technique detected
Encrypted powershell cmdline option found
Found many strings related to Crypto-Wallets (likely being stolen)
May check the online IP address of the machine
Modifies Windows Defender protection settings
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Removes signatures from Windows Defender
Sigma detected: Capture Wi-Fi password
Sigma detected: Dot net compiler compiles file from suspicious location
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal WLAN passwords
Uses netsh to modify the Windows network and firewall settings
Very long command line found
Writes or reads registry keys via WMI
Yara detected Blank Grabber
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1305795 Sample: VIRUS_stub_ro_crasher.exe Startdate: 08/09/2023 Architecture: WINDOWS Score: 100 68 Antivirus / Scanner detection for submitted sample 2->68 70 Sigma detected: Capture Wi-Fi password 2->70 72 Multi AV Scanner detection for submitted file 2->72 74 2 other signatures 2->74 10 VIRUS_stub_ro_crasher.exe 61 2->10         started        process3 file4 52 C:\Users\user\AppData\...\VCRUNTIME140.dll, PE32+ 10->52 dropped 54 C:\Users\user\AppData\Local\...\rarreg.key, ASCII 10->54 dropped 56 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 10->56 dropped 58 55 other files (none is malicious) 10->58 dropped 96 DLL reload attack detected 10->96 98 Very long command line found 10->98 100 May check the online IP address of the machine 10->100 102 4 other signatures 10->102 14 VIRUS_stub_ro_crasher.exe 1 25 10->14         started        signatures5 process6 dnsIp7 64 ip-api.com 208.95.112.1, 49749, 80 TUT-ASUS United States 14->64 66 discordapp.com 162.159.129.233, 443, 49757 CLOUDFLARENETUS United States 14->66 104 Very long command line found 14->104 106 Found many strings related to Crypto-Wallets (likely being stolen) 14->106 108 Tries to harvest and steal browser information (history, passwords, etc) 14->108 110 4 other signatures 14->110 18 cmd.exe 1 14->18         started        21 cmd.exe 1 14->21         started        23 cmd.exe 1 14->23         started        25 20 other processes 14->25 signatures8 process9 signatures10 76 Suspicious powershell command line found 18->76 78 Very long command line found 18->78 80 Encrypted powershell cmdline option found 18->80 88 3 other signatures 18->88 27 powershell.exe 19 18->27         started        29 conhost.exe 18->29         started        31 powershell.exe 21->31         started        34 conhost.exe 21->34         started        82 Modifies Windows Defender protection settings 23->82 84 Removes signatures from Windows Defender 23->84 43 3 other processes 23->43 86 Tries to harvest and steal WLAN passwords 25->86 36 getmac.exe 25->36         started        39 WMIC.exe 25->39         started        41 systeminfo.exe 25->41         started        45 37 other processes 25->45 process11 file12 60 C:\Users\user\AppData\...\kr5eb22z.cmdline, Unicode 31->60 dropped 47 csc.exe 31->47         started        90 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 36->90 92 Writes or reads registry keys via WMI 36->92 94 DLL side loading technique detected 39->94 signatures13 process14 file15 62 C:\Users\user\AppData\Local\...\kr5eb22z.dll, PE32 47->62 dropped 50 cvtres.exe 47->50         started        process16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/27f599038343d5433f51dcff77ecf7f72256b21829e96b9ce71a7241466f0a7e/
Threat name:
Win64.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-08-31 07:07:00 UTC
File Type:
PE+ (Exe)
Extracted files:
423
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=e72zsa4dipkugp2r3t7xp3hx64rfnmqyfhuwxhhhdjzecrtpbj7a._file
Verdict:
unknown
Similar samples:
12dce304f7dd9fbe88d7d8bfe943540c3fd0121fb5fb471ea080c5b4f182d39c
BlankGrabber
1ccc641022b3e95b4eaa3339f8d980bf1b606ca8d4f529c98f8d7d2762515b85
BlankGrabber
2aecab4d8aabdedc75c03cfc858047dea40c2022430a282dac70b0b6a1d67947
BlankGrabber
3fae6735a44f901db80b039a624ec9658ef680e3606d14867b94b56bc1b0a9f6
BlankGrabber
61514d792a0dff68436f3897149f8b9fdf1c256be8ec5f9e3e06a363af04bab6
BlankGrabber
7f6df82011dde29aec801f3b76a787f2774ee8586b0df091f00c68ac488dc6a7
BlankGrabber
91c4fc7399536afef7e77c46cf58ab032bf47bae62c5a156631ec04a8d269bd8
BlankGrabber
c37494daa1a9c3b20e3f19414e25907b598b45be7ae5486d144b28a98ade3aa3
BlankGrabber
d2803b97a3cdb1787df9e3bd60818968fecb86bf7eb48bfa51e0757f055b95e4
BlankGrabber
+ 5 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware stealer upx
Link:
https://tria.ge/reports/230907-zkvreaeb5x/
Behaviour
Detects videocard installed
Enumerates processes with tasklist
Gathers system information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Accesses cryptocurrency files/wallets, possible credential harvesting
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
UPX packed file
Unpacked files
SH256 hash:
27f599038343d5433f51dcff77ecf7f72256b21829e96b9ce71a7241466f0a7e
MD5 hash:
40f236182c70a8af8d8d2701c47603dd
SHA1 hash:
895a20e58bdc3552bd130f3ae314b342f358ea4c
Link:
https://www.unpac.me/results/bb21b9ce-f7fc-4192-8a13-5f7fee3ea736/
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/27f599038343d5433f51dcff77ecf7f72256b21829e96b9ce71a7241466f0a7e

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__ConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_KB_CERT_00bfb15001bbf592d4962a7797ea736fa3
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked, fake or invalid certificate
Reference:https://capesandbox.com/analysis/444899/
Rule name:ldpreload
Create hunting rule
Author:xorseed
Reference:https://stuff.rop.io/
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:upxHook
Create hunting rule
Author:@r3dbU7z
Description:Detect artifacts from 'upxHook' - modification of UPX packer
Reference:https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:WHIRLPOOL_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for WhirlPool constants

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/447284/

Comments