MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 32d54ecb913de9d4a1e9093092ad20501db0aca6e919b45fc6e73df6579a1ca2. 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


MarsStealer


Vendor detections: 14


Intelligence 14 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 32d54ecb913de9d4a1e9093092ad20501db0aca6e919b45fc6e73df6579a1ca2
SHA3-384 hash: cca2eae8a45b0653c87c4b1d2ddc2a21cfb4b6fa39e38822ea157d341d436eaf17600dc47b40b99a8aa5a22b38702c5d
SHA1 hash: 728f98116cee985ca5a89dcac61f784f843385d9
MD5 hash: bf3d99c0ea605559e97c521b852f94d1
humanhash: whiskey-emma-romeo-network
File name:OperaGXSetup.exe
Download: download sample
Signature MarsStealer
Create hunting rule
File size:10'528'768 bytes
First seen:2023-09-12 17:20:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 49152:LAv7oT9jeUDRZgyK+yHqrIXvB+cSq4D0+tk2dUloA6X0ZWpMujLkps6k2Y4B7FZZ:
Threatray 232 similar samples on MalwareBazaar
TLSH T17CB6D9202CFF105EB1B3AF6D4BD8B9AB996EF763270A64B9107103864713E81DDD2539
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)
Reporter vovaan
Tags:binder dropper exe MarsStealer


Avatar
vovaan
url : hxxps://gofile.io/d/GHaewZ
url : hxxps://store3.gofile.io/download/1c246c6d-a84b-4c1e-a034-f186943be907/OperaGXSetup.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
413
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
arkei
Create hunting rule
ID:
1
File name:
OperaGXSetup.exe
Verdict:
Malicious activity
Analysis date:
2023-09-12 17:22:21 UTC
Tags:
arkei
Link:
https://app.any.run/tasks/209f61af-46ad-4cd5-a655-573a4130c183

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/448237/
Detection(s):
SecuriteInfo.com.Win32.DropperX-gen.5541.3095.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% subdirectories
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file
Creating a window
Creating a file in the %AppData% directory
DNS request
Sending a custom TCP request
Searching for synchronization primitives
Sending an HTTP GET request
Unauthorized injection to a recently created process
Query of malicious DNS domain
Sending a TCP request to an infection source
Sending an HTTP GET request to an infection source
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65009dff829c3479a05e0322/reports/ed2cd578-7db9-4ee4-926d-743030b4de1a/overview
Verdict:
Malicious
Labled as:
MSIL.Binder.Generic
Link:
https://www.hybrid-analysis.com/sample/32d54ecb913de9d4a1e9093092ad20501db0aca6e919b45fc6e73df6579a1ca2
Result
Verdict:
MALICIOUS
Malware family:
Oski Stealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3452b67d-9ff8-4894-adae-2f4a64880ec5
Result
Threat name:
Mars Stealer, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad.rans
Score:
82 / 100
Link:
https://www.joesandbox.com/analysis/1308516
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Contains functionality to register a low level keyboard hook
Drops executable to a common third party application directory
Found evasive API chain (may stop execution after checking computer name)
Found evasive API chain (may stop execution after checking locale)
Found evasive API chain (may stop execution after checking mutex)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Installs a global event hook (focus changed)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
PE file has a writeable .text section
PE file has nameless sections
Sample uses string decryption to hide its real strings
Yara detected Mars stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1308516 Sample: OperaGXSetup.exe Startdate: 15/09/2023 Architecture: WINDOWS Score: 82 110 Multi AV Scanner detection for domain / URL 2->110 112 Found malware configuration 2->112 114 Malicious sample detected (through community Yara rule) 2->114 116 13 other signatures 2->116 9 OperaGXSetup.exe 6 2->9         started        process3 file4 66 C:\Users\user\AppData\...\QUN56VER.exe, PE32 9->66 dropped 68 C:\Users\user\AppData\Local\...\47DBH0EQ.exe, PE32 9->68 dropped 128 Drops executable to a common third party application directory 9->128 13 QUN56VER.exe 6 9->13         started        16 47DBH0EQ.exe 48 9->16         started        20 conhost.exe 9->20         started        signatures5 process6 dnsIp7 88 C:\Users\user\AppData\...behaviorgraphX0930G5B16MVB.exe, PE32 13->88 dropped 22 GX0930G5B16MVB.exe 12 13->22         started        25 conhost.exe 13->25         started        100 107.167.110.216 OPERASOFTWAREUS United States 16->100 102 107.167.110.218 OPERASOFTWAREUS United States 16->102 104 3 other IPs or domains 16->104 90 Opera_installer_2309142214572266356.dll, PE32 16->90 dropped 92 C:\Users\user\AppData\Local\...\opera_package, PE32 16->92 dropped 94 Opera_GX_assistant....exe_sfx.exe (copy), PE32 16->94 dropped 96 4 other files (none is malicious) 16->96 dropped 108 Found many strings related to Crypto-Wallets (likely being stolen) 16->108 27 47DBH0EQ.exe 1 159 16->27         started        30 Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe 16->30         started        32 47DBH0EQ.exe 5 16->32         started        34 2 other processes 16->34 file8 signatures9 process10 file11 118 Found evasive API chain (may stop execution after checking mutex) 22->118 120 Found many strings related to Crypto-Wallets (likely being stolen) 22->120 122 Found evasive API chain (may stop execution after checking computer name) 22->122 124 2 other signatures 22->124 36 WerFault.exe 22->36         started        70 C:\Users\user\AppData\Local\...\installer.exe, PE32+ 27->70 dropped 72 Opera_installer_2309142215140222924.dll, PE32 27->72 dropped 74 C:\Users\user\AppData\...\win8_importing.dll, PE32+ 27->74 dropped 86 18 other files (none is malicious) 27->86 dropped 39 installer.exe 27->39         started        43 47DBH0EQ.exe 27->43         started        76 C:\Users\user\AppData\Local\...\mojo_core.dll, PE32 30->76 dropped 78 C:\Users\user\...\browser_assistant.exe, PE32 30->78 dropped 80 C:\Users\user\...\assistant_installer.exe, PE32 30->80 dropped 82 Opera_installer_2309142214576346536.dll, PE32 32->82 dropped 84 Opera_installer_2309142214583055024.dll, PE32 34->84 dropped 45 assistant_installer.exe 34->45         started        signatures12 process13 dnsIp14 106 52.168.117.173 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 36->106 56 Opera_installer_2309142215597637460.dll, PE32+ 39->56 dropped 58 C:\Users\user\AppData\Local\...\opera.exe, PE32+ 39->58 dropped 60 C:\Users\user\AppData\Local\...\launcher.exe, PE32+ 39->60 dropped 62 C:\...\launcher.exe.1694729760.old (copy), PE32+ 39->62 dropped 126 Installs a global event hook (focus changed) 39->126 47 installer.exe 39->47         started        50 explorer.exe 39->50 injected 52 wpibDbjIVTGzt.exe 39->52 injected 54 8 other processes 39->54 64 Opera_installer_2309142215152176836.dll, PE32 43->64 dropped file15 signatures16 process17 file18 98 Opera_installer_2309142216001717480.dll, PE32+ 47->98 dropped
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/32d54ecb913de9d4a1e9093092ad20501db0aca6e919b45fc6e73df6579a1ca2/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-09-12 17:21:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
17 of 23 (73.91%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=glku5s4rhxu5jipjbeyjfljakao3blfg5em3ix6g4467mv42dsra._file
Verdict:
malicious
Similar samples:
1cecb5f04b2bb2994f2f5f3f9413de052a28a33f7efbfa52fa8b71ef47b5d8c5
MarsStealer
5e8fac6112512b2f2a726424c8acfe486043905a2b8efc0219be0c551a4a6cd6
MarsStealer
7afafcbfe0b9ec3f6f32a0657aef1318bef5db8e698da4d81db74d0233792af7
MarsStealer
aa18400f1aa2fef6c2a5a50965981a3d668e052ce8ac851a8bd145cac1ee2ace
MarsStealer
cf9635e854291ea0fe4a1dbf494d2b1ebdb2a89b4b321db264fcca47c0813781
MarsStealer
ed4cbfe246783bd7a7d124ac8f67e208f968a805264c3c6883fe77ac8fc4e72c
MarsStealer
+ 222 additional samples on MalwareBazaar
Result
Malware family:
marsstealer
Create hunting rule
Score:
  10/10
Tags:
family:marsstealer botnet:default spyware stealer upx
Link:
https://tria.ge/reports/230912-vwzsaaha63/
Behaviour
Modifies system certificate store
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Enumerates connected drives
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
UPX packed file
Downloads MZ/PE file
Mars Stealer
Malware Config
C2 Extraction:
www.criminalaffair.com/wp-admin/admin-ajax.php
Unpacked files
SH256 hash:
1094bad03baf92754270f15b2064338f7a3d220e431c0c9b841e17925c24adb9
MD5 hash:
fde165e63fae45a659724ce75f258867
SHA1 hash:
b1976c3dfd85eae2da905b7b9498cdeebafe5e6f
Link:
https://www.unpac.me/results/b7f726de-ca1c-4d4b-8a95-ea5bd066aef0/
SH256 hash:
5ce064556cf5376020ae818972ceed32b958003fa7fa3752ff6570ebde1a115d
MD5 hash:
099c844d8f2661db335f3fd4cf9ce456
SHA1 hash:
6ccb9cac2c0d50681e735d8aa700e9908dc9c8ce
Link:
https://www.unpac.me/results/b7f726de-ca1c-4d4b-8a95-ea5bd066aef0/
SH256 hash:
27a678eebaba4c9ecb3c0594dc16db1f3bab992d33904d42411aec955eec998d
MD5 hash:
2b3c5b6b55374a78ed43746ffd2fe8c1
SHA1 hash:
c37066d60c318769856ea50b14f222cb4c9fe355
Link:
https://www.unpac.me/results/b7f726de-ca1c-4d4b-8a95-ea5bd066aef0/
SH256 hash:
a63d141188c5910b794e943adfb64137df16ec9c0e8917608f35c964fad578b6
MD5 hash:
24104738cf633736a48f157f2d3f2120
SHA1 hash:
e2725da6272bde0322e9df269504c421ca5c1268
Link:
https://www.unpac.me/results/b7f726de-ca1c-4d4b-8a95-ea5bd066aef0/
SH256 hash:
27ea2ee662a5400b4bdb0a10752555b3095c8101dd257157e7df37b88f7c8005
MD5 hash:
b1a6dfd90ac69789307d8141e4d4ac19
SHA1 hash:
365215988d8efde0e38fa57a6849fb427c57cdc2
Link:
https://www.unpac.me/results/b7f726de-ca1c-4d4b-8a95-ea5bd066aef0/
SH256 hash:
32d54ecb913de9d4a1e9093092ad20501db0aca6e919b45fc6e73df6579a1ca2
MD5 hash:
bf3d99c0ea605559e97c521b852f94d1
SHA1 hash:
728f98116cee985ca5a89dcac61f784f843385d9
Link:
https://www.unpac.me/results/b7f726de-ca1c-4d4b-8a95-ea5bd066aef0/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/32d54ecb913de9d4a1e9093092ad20501db0aca6e919b45fc6e73df6579a1ca2

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
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:grakate_stealer_nov_2021
Create hunting rule
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
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: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: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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:UPX290LZMAMarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:yara_template
Create hunting rule

File information

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

Web download

MarsStealer

Executable exe 32d54ecb913de9d4a1e9093092ad20501db0aca6e919b45fc6e73df6579a1ca2

(this sample)

  
Link
http://www.criminalaffair.com/wp-admin/admin-ajax.php
  
Link
https://store3.gofile.io/download/1c246c6d-a84b-4c1e-a034-f186943be907/OperaGXSetup.exe
  
Dropping
MarsStealer
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/448237/

Comments