MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0ca9b9469fbd76432db4418d63c089762d6c1598fac4a69d02f200d90d6119bb. 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: 10


Intelligence 10 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0ca9b9469fbd76432db4418d63c089762d6c1598fac4a69d02f200d90d6119bb
SHA3-384 hash: 3e5fc781d87c0891d29fd45df6196b548aebaceba00847b7e1ce07c97095618ddf877034cbd1f9643f26016ad766f603
SHA1 hash: 7ae6f1a405230bc23498b9ff1fd137d5653b0c41
MD5 hash: 30a92409efe198545cfa4a86457c6c0b
humanhash: fourteen-arkansas-sixteen-uniform
File name:WIAACMGR.EXE
Download: download sample
Signature BlankGrabber
Create hunting rule
File size:14'680'064 bytes
First seen:2023-10-04 20:08:54 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:jtzHqdVfB2GyuT/9vUIdD9C+z3zO917vOTh+ezsNh75S2zh/hQq9vmJ1YPFlVtqz:jxQsGbT/9bvLz3S1bA32zOqYYPdo
Threatray 20 similar samples on MalwareBazaar
TLSH T1B2E633DAA3C249F4D473C639C2C28945D9B5752B03A4DA8B03F462F61F17AD48D3BB62
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 :
466
Origin country :
HU HU
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Win64.Evo-gen.14877.26044.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
Launching a process
Using the Windows Management Instrumentation requests
Creating a window
Searching for synchronization primitives
Sending an HTTP GET request
Creating a file
Sending a custom TCP request
Reading critical registry keys
Launching the process to change network settings
Stealing user critical data
Adding an exclusion to Microsoft Defender
Gathering data
Verdict:
No Threat
Threat level:
  2.5/10
Confidence:
100%
Tags:
control expand greyware lolbin masquerade overlay
Link:
https://www.filescan.io/uploads/651dc660a31588d184f11181/reports/5ed9d40d-b1dc-4bd3-8064-8df676246f60/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/0ca9b9469fbd76432db4418d63c089762d6c1598fac4a69d02f200d90d6119bb
Result
Verdict:
MALICIOUS
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/071eb891-23a7-4d5b-99a0-1c1e5f36cfdf
Result
Threat name:
Blank Grabber
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1319746
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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 dnsIp2 2 Behavior Graph ID: 1319746 Sample: WIAACMGR.EXE.exe Startdate: 04/10/2023 Architecture: WINDOWS Score: 100 53 blank-lclvq.in 2->53 55 ip-api.com 2->55 65 Found malware configuration 2->65 67 Antivirus detection for URL or domain 2->67 69 Antivirus / Scanner detection for submitted sample 2->69 71 3 other signatures 2->71 9 WIAACMGR.EXE.exe 22 2->9         started        signatures3 process4 file5 45 C:\Users\user\AppData\Local\...\rarreg.key, ASCII 9->45 dropped 47 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 9->47 dropped 49 C:\Users\user\AppData\Local\...\sqlite3.dll, PE32+ 9->49 dropped 51 16 other files (none is malicious) 9->51 dropped 75 Modifies Windows Defender protection settings 9->75 77 Adds a directory exclusion to Windows Defender 9->77 79 Removes signatures from Windows Defender 9->79 13 WIAACMGR.EXE.exe 9->13         started        signatures6 process7 dnsIp8 57 ip-api.com 208.95.112.1, 49762, 80 TUT-ASUS United States 13->57 81 Found many strings related to Crypto-Wallets (likely being stolen) 13->81 83 Modifies Windows Defender protection settings 13->83 85 Adds a directory exclusion to Windows Defender 13->85 87 Removes signatures from Windows Defender 13->87 17 cmd.exe 1 13->17         started        20 cmd.exe 1 13->20         started        22 cmd.exe 1 13->22         started        24 2 other processes 13->24 signatures9 process10 signatures11 59 Modifies Windows Defender protection settings 17->59 61 Adds a directory exclusion to Windows Defender 17->61 63 Removes signatures from Windows Defender 17->63 26 powershell.exe 23 17->26         started        28 conhost.exe 17->28         started        30 powershell.exe 23 20->30         started        32 conhost.exe 20->32         started        34 MpCmdRun.exe 20->34         started        36 WMIC.exe 1 22->36         started        39 conhost.exe 22->39         started        41 mshta.exe 24->41         started        43 3 other processes 24->43 process12 signatures13 73 DLL side loading technique detected 36->73
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0ca9b9469fbd76432db4418d63c089762d6c1598fac4a69d02f200d90d6119bb/
Threat name:
Win64.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2023-10-04 20:09:08 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
12 of 23 (52.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bsu3sru7xv3eglnuiggwhqejoywwyfmy7lcknhic6iansdlbdg5q._file
Verdict:
unknown
Similar samples:
0effaa167297f1300685fe2d7e887bdb98e7c9c05bb6133a739fce685a5714d3
BlankGrabber
15dd97919ebcb246add4fc9e9b201bdd67da510c79f8d89cb4edc7fbf64858fa
BlankGrabber
1ccc641022b3e95b4eaa3339f8d980bf1b606ca8d4f529c98f8d7d2762515b85
BlankGrabber
27f599038343d5433f51dcff77ecf7f72256b21829e96b9ce71a7241466f0a7e
BlankGrabber
2aecab4d8aabdedc75c03cfc858047dea40c2022430a282dac70b0b6a1d67947
BlankGrabber
3fae6735a44f901db80b039a624ec9658ef680e3606d14867b94b56bc1b0a9f6
BlankGrabber
60ee0d0e9f0799545b6d1739f6554a1591bf62c6efaee94f48fea42e7d4e4f1f
BlankGrabber
61514d792a0dff68436f3897149f8b9fdf1c256be8ec5f9e3e06a363af04bab6
BlankGrabber
91c4fc7399536afef7e77c46cf58ab032bf47bae62c5a156631ec04a8d269bd8
BlankGrabber
c37494daa1a9c3b20e3f19414e25907b598b45be7ae5486d144b28a98ade3aa3
BlankGrabber
+ 10 additional samples on MalwareBazaar
Result
Malware family:
blankgrabber
Create hunting rule
Score:
  10/10
Tags:
family:blankgrabber upx
Link:
https://tria.ge/reports/231004-yw4ysagf78/
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:
0ca9b9469fbd76432db4418d63c089762d6c1598fac4a69d02f200d90d6119bb
MD5 hash:
30a92409efe198545cfa4a86457c6c0b
SHA1 hash:
7ae6f1a405230bc23498b9ff1fd137d5653b0c41
Link:
https://www.unpac.me/results/28b98c6c-cca4-41d9-83d1-ab1960fc592a/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0ca9b9469fbd/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/0ca9b9469fbd76432db4418d63c089762d6c1598fac4a69d02f200d90d6119bb

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.

Comments