MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91c4fc7399536afef7e77c46cf58ab032bf47bae62c5a156631ec04a8d269bd8. 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: 11


Intelligence 11 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91c4fc7399536afef7e77c46cf58ab032bf47bae62c5a156631ec04a8d269bd8
SHA3-384 hash: 5ed553793f624ebccb82a2ca9498e1bd0a311f7c4e9fb051d5f2e89d86b71d2710e7146d5572619f8692e50413327a0a
SHA1 hash: f712836d64edff6d375474925e726dc67aa48703
MD5 hash: e24f32f579121ca275a1fc612cdeca93
humanhash: mars-beryllium-harry-carbon
File name:MDEServer.exe
Download: download sample
Signature BlankGrabber
Create hunting rule
File size:8'150'902 bytes
First seen:2023-08-17 08:31:14 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 98304:0dzHqdVfB2R6yuT/9vUIdD9C+z3zO917vOTh+ezsNhCSpXq45S2zh/hQq5vvmJ1j:0BQsMbT/9bvLz3S1bA32CSEeOqMYPd+
Threatray 61 similar samples on MalwareBazaar
TLSH T1E78633D9A2C10AF5E477C53EC2C24905CEB1752707A4CA8F07B862B51F2BAD48D7BB52
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 smica83
Tags:BlankGrabber exe HUN

Intelligence

File Origin
# of uploads :
1
# of downloads :
274
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MDEServer.exe
Verdict:
Suspicious activity
Analysis date:
2023-08-17 08:34:12 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/fb7c5833-be98-4f3d-9e7f-cb16c553a247

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/443163/
Detection(s):
SecuriteInfo.com.HEUR.Trojan-PSW.Python.Agent.gen.8588.26986.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Creating a window
Launching a process
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
Sending an HTTP GET request
Creating a file
Sending a custom TCP request
Launching the process to change network settings
Enabling the 'hidden' option for analyzed file
Adding an exclusion to Microsoft Defender
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/103030/overview
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control expand greyware lolbin overlay packed
Link:
https://www.filescan.io/uploads/64dddb039a7e04b475d0a8ee/reports/6d6d71ac-ffb0-4305-b2ab-fd19e3624f07/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/91c4fc7399536afef7e77c46cf58ab032bf47bae62c5a156631ec04a8d269bd8
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/8f3168d7-bee0-4de2-b827-855474267a74
Result
Threat name:
Blank Grabber
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1292642
Signature
Adds a directory exclusion to Windows Defender
DLL reload attack detected
DLL side loading technique detected
Found malware configuration
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
Removes signatures from Windows Defender
Yara detected Blank Grabber
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1292642 Sample: MDEServer.exe Startdate: 17/08/2023 Architecture: WINDOWS Score: 96 58 Found malware configuration 2->58 60 Multi AV Scanner detection for submitted file 2->60 62 Yara detected Blank Grabber 2->62 64 Found many strings related to Crypto-Wallets (likely being stolen) 2->64 8 MDEServer.exe 61 2->8         started        process3 file4 42 C:\Users\user\AppData\...\VCRUNTIME140.dll, PE32+ 8->42 dropped 44 C:\Users\user\AppData\Local\...\rarreg.key, ASCII 8->44 dropped 46 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 8->46 dropped 48 55 other files (none is malicious) 8->48 dropped 66 DLL reload attack detected 8->66 68 May check the online IP address of the machine 8->68 70 Modifies Windows Defender protection settings 8->70 72 2 other signatures 8->72 12 MDEServer.exe 8->12         started        signatures5 process6 dnsIp7 50 ip-api.com 208.95.112.1, 49728, 80 TUT-ASUS United States 12->50 52 blank-hjgi2.in 12->52 74 Modifies Windows Defender protection settings 12->74 76 Adds a directory exclusion to Windows Defender 12->76 78 Removes signatures from Windows Defender 12->78 16 cmd.exe 1 12->16         started        19 cmd.exe 1 12->19         started        21 cmd.exe 1 12->21         started        23 2 other processes 12->23 signatures8 process9 signatures10 54 Modifies Windows Defender protection settings 16->54 56 Adds a directory exclusion to Windows Defender 16->56 25 powershell.exe 17 16->25         started        27 conhost.exe 16->27         started        29 WMIC.exe 1 19->29         started        32 conhost.exe 19->32         started        34 powershell.exe 19 21->34         started        36 conhost.exe 21->36         started        38 tasklist.exe 1 23->38         started        40 conhost.exe 23->40         started        process11 signatures12 80 DLL side loading technique detected 29->80
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91c4fc7399536afef7e77c46cf58ab032bf47bae62c5a156631ec04a8d269bd8/
Threat name:
Win64.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-08-17 00:42:20 UTC
File Type:
PE+ (Exe)
Extracted files:
423
AV detection:
10 of 37 (27.03%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=shcpy44zknvp557hprdm6wflamv7i65omlc2cvtdd3aevdjgtpma._file
Verdict:
unknown
Similar samples:
12dce304f7dd9fbe88d7d8bfe943540c3fd0121fb5fb471ea080c5b4f182d39c
BlankGrabber
1ccc641022b3e95b4eaa3339f8d980bf1b606ca8d4f529c98f8d7d2762515b85
BlankGrabber
3fae6735a44f901db80b039a624ec9658ef680e3606d14867b94b56bc1b0a9f6
BlankGrabber
5ce9df04ac0b2241af1e7d9f95406dbfb628fdb0b1998667894c6e5812bcbffe
BlankGrabber
7f6df82011dde29aec801f3b76a787f2774ee8586b0df091f00c68ac488dc6a7
BlankGrabber
aaf8bacb50337981eefb44f10932bbcfeb749f20bac3fd8f80c9e78352aab7f0
BlankGrabber
b5e6b887d6175aab915bdadee6b804a8815e9cd43ad208eedea464b338cf8c3c
BlankGrabber
d2803b97a3cdb1787df9e3bd60818968fecb86bf7eb48bfa51e0757f055b95e4
BlankGrabber
e274063b7b6fc1e3646ffe18975060ec8c5aab36c7cc2c87ea991499995d22f6
BlankGrabber
ef426378b036233b200380dd86da46ae5666c929cc8d8800e938938e2383be3d
BlankGrabber
+ 51 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
upx
Link:
https://tria.ge/reports/230817-kfahcaab3x/
Behaviour
Enumerates processes with tasklist
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Loads dropped DLL
UPX packed file
Unpacked files
SH256 hash:
91c4fc7399536afef7e77c46cf58ab032bf47bae62c5a156631ec04a8d269bd8
MD5 hash:
e24f32f579121ca275a1fc612cdeca93
SHA1 hash:
f712836d64edff6d375474925e726dc67aa48703
Link:
https://www.unpac.me/results/be9073fa-6958-4ffe-9d2a-8b1b979575ec/
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/91c4fc7399536afef7e77c46cf58ab032bf47bae62c5a156631ec04a8d269bd8

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: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:reverse_http
Create hunting rule
Author:CD_R0M_
Description:Identify strings with http reversed (ptth)
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/443163/

Comments