MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5afff322d4b56afbe4429c6fd83aa2d699c51dbf4f5495b08ac104f07da8c49d. 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: 17


Intelligence 17 IOCs YARA 7 File information Comments
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SHA256 hash: 5afff322d4b56afbe4429c6fd83aa2d699c51dbf4f5495b08ac104f07da8c49d
SHA3-384 hash: 6531074c8edd120557a61c5e8d7743d51d9863451d951bc45e59b9be5297ac8d091ab100bfaa8b02f2ce3e0d56ff4f91
SHA1 hash: 07a0dc8735b048696d8db42ad689ba8c9bbbccc9
MD5 hash: b20dff2e59e94e48d6449fb22ec6411b
humanhash: mars-seventeen-saturn-diet
File name:aNj1aFSOxohqZwe847hVpx4K.exe
Download: download sample
Signature MarsStealer
Create hunting rule
File size:212'008 bytes
First seen:2024-09-15 10:57:17 UTC
Last seen:2024-09-15 11:53:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'612 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 3072:m9lvA05ye1dltQgaGcNQ+GubyWGBFbELlAqhxql2ihUuDtiZOYItDia4iGYp/qgh:mbIuJQrueGB1AKDvQlIQYVEO
TLSH T1872412C64AB8552AFBDA8A315191E613DEF1F1C53327C89B810DE37B988E6431F127E4
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter aachum
Tags:exe MarsStealer

Intelligence

File Origin
# of uploads :
2
# of downloads :
374
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
aNj1aFSOxohqZwe847hVpx4K.exe
Verdict:
Malicious activity
Analysis date:
2024-09-15 10:56:14 UTC
Tags:
stealer stealc loader
Link:
https://app.any.run/tasks/c029911c-b8b7-4236-8afc-a3a3db51d169

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.25212.8013.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66e6bdbc71e91b3281b9f544
Tags:
Encryption Static
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/66e6bdbb5e9303a29421c75a/reports/6c9f1d4d-9977-4d19-9908-9d1913ca54e7/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/5afff322d4b56afbe4429c6fd83aa2d699c51dbf4f5495b08ac104f07da8c49d
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.
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9a9c625d-5b3d-4045-90d2-ee0cbc815f4a
Result
Threat name:
LummaC, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1511424
Signature
.NET source code contains very large array initializations
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
LummaC encrypted strings found
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected LummaC Stealer
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1511424 Sample: aNj1aFSOxohqZwe847hVpx4K.exe Startdate: 15/09/2024 Architecture: WINDOWS Score: 100 116 t.me 2->116 118 stitchmiscpaew.shop 2->118 120 12 other IPs or domains 2->120 154 Multi AV Scanner detection for domain / URL 2->154 156 Suricata IDS alerts for network traffic 2->156 158 Found malware configuration 2->158 160 14 other signatures 2->160 15 aNj1aFSOxohqZwe847hVpx4K.exe 2 2->15         started        signatures3 process4 file5 114 C:\Users\...\aNj1aFSOxohqZwe847hVpx4K.exe.log, ASCII 15->114 dropped 138 Contains functionality to inject code into remote processes 15->138 140 Writes to foreign memory regions 15->140 142 Allocates memory in foreign processes 15->142 144 Injects a PE file into a foreign processes 15->144 19 RegAsm.exe 39 15->19         started        24 RegAsm.exe 15->24         started        26 conhost.exe 15->26         started        28 RegAsm.exe 15->28         started        signatures6 process7 dnsIp8 122 46.8.231.109, 49702, 60643, 80 FIORD-ASIP-transitoperatorinRussiaUkraineandBaltics Russian Federation 19->122 124 147.45.44.104, 49703, 80 FREE-NET-ASFREEnetEU Russian Federation 19->124 126 royalsuiting.com 199.26.84.23, 443, 49704, 60641 ASN-DISUS United States 19->126 90 C:\Users\user\AppData\...\vdaasdf[1].exe, PE32 19->90 dropped 92 C:\Users\user\AppData\...\softokn3[1].dll, PE32 19->92 dropped 94 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 19->94 dropped 96 13 other files (9 malicious) 19->96 dropped 162 Tries to steal Mail credentials (via file / registry access) 19->162 164 Tries to steal Crypto Currency Wallets 19->164 166 Tries to harvest and steal Bitcoin Wallet information 19->166 30 cmd.exe 1 19->30         started        32 cmd.exe 1 19->32         started        168 Found evasive API chain (may stop execution after checking locale) 24->168 170 Searches for specific processes (likely to inject) 24->170 file9 signatures10 process11 process12 34 userAECAECFCAA.exe 2 30->34         started        37 conhost.exe 30->37         started        39 userIIIDAKJDHJ.exe 2 32->39         started        41 conhost.exe 32->41         started        signatures13 146 Writes to foreign memory regions 34->146 148 Allocates memory in foreign processes 34->148 150 Injects a PE file into a foreign processes 34->150 43 RegAsm.exe 1 134 34->43         started        48 conhost.exe 34->48         started        152 LummaC encrypted strings found 39->152 50 RegAsm.exe 39->50         started        52 conhost.exe 39->52         started        process14 dnsIp15 128 t.me 149.154.167.99, 443, 60617 TELEGRAMRU United Kingdom 43->128 130 159.69.100.83, 443, 60619, 60620 HETZNER-ASDE Germany 43->130 98 C:\Users\user\AppData\...\vdaasdf[1].exe, PE32 43->98 dropped 100 C:\Users\user\AppData\...\srfmnew[1].exe, PE32 43->100 dropped 102 C:\ProgramData\IJKJDAFHJD.exe, PE32 43->102 dropped 104 C:\ProgramData\CGIDGCGIEG.exe, PE32 43->104 dropped 180 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 43->180 182 Found many strings related to Crypto-Wallets (likely being stolen) 43->182 184 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 43->184 186 2 other signatures 43->186 54 CGIDGCGIEG.exe 43->54         started        57 IJKJDAFHJD.exe 43->57         started        59 cmd.exe 43->59         started        132 stitchmiscpaew.shop 104.21.26.150, 443, 49709 CLOUDFLARENETUS United States 50->132 134 basedsymsotp.shop 104.21.78.130, 443, 49706 CLOUDFLARENETUS United States 50->134 136 3 other IPs or domains 50->136 file16 signatures17 process18 signatures19 172 Multi AV Scanner detection for dropped file 54->172 174 Writes to foreign memory regions 54->174 176 Allocates memory in foreign processes 54->176 61 RegAsm.exe 54->61         started        65 conhost.exe 54->65         started        178 Injects a PE file into a foreign processes 57->178 67 conhost.exe 57->67         started        69 RegAsm.exe 57->69         started        71 conhost.exe 59->71         started        73 timeout.exe 59->73         started        process20 file21 106 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 61->106 dropped 108 C:\Users\user\AppData\...\vdaasdf[1].exe, PE32 61->108 dropped 110 C:\Users\user\AppData\...\softokn3[1].dll, PE32 61->110 dropped 112 7 other files (5 malicious) 61->112 dropped 188 Tries to steal Mail credentials (via file / registry access) 61->188 190 Tries to harvest and steal ftp login credentials 61->190 192 Tries to harvest and steal browser information (history, passwords, etc) 61->192 194 2 other signatures 61->194 75 cmd.exe 61->75         started        77 cmd.exe 61->77         started        signatures22 process23 process24 79 userJJDBFCAEBF.exe 75->79         started        82 conhost.exe 75->82         started        84 userFHDHCAAKEC.exe 77->84         started        86 conhost.exe 77->86         started        signatures25 196 Writes to foreign memory regions 79->196 198 Allocates memory in foreign processes 79->198 200 Injects a PE file into a foreign processes 79->200 88 conhost.exe 84->88         started        process26
Score:
63%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/5afff322d4b56afbe4429c6fd83aa2d699c51dbf4f5495b08ac104f07da8c49d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5afff322d4b56afbe4429c6fd83aa2d699c51dbf4f5495b08ac104f07da8c49d/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2024-09-15 11:02:48 UTC
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ll77giwuwvvpxzcctrx5qovc22m4khn7j5kjlmekyecpa7niysoq._file
Verdict:
malicious
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:lumma family:stealc family:vidar botnet:default credential_access discovery spyware stealer
Link:
https://tria.ge/reports/240915-m2tjfs1cqr/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Unsecured Credentials: Credentials In Files
Downloads MZ/PE file
Credentials from Password Stores: Credentials from Web Browsers
Detect Vidar Stealer
Lumma Stealer, LummaC
Stealc
Vidar
Malware Config
C2 Extraction:
http://46.8.231.109
https://complainnykso.shop/api
https://basedsymsotp.shop/api
https://charistmatwio.shop/api
https://stitchmiscpaew.shop/api
https://commisionipwn.shop/api
https://grassemenwji.shop/api
https://t.me/edm0d
https://steamcommunity.com/profiles/76561199768374681
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f655acbb-06bb-4a92-93bc-e25e3514e658
Unpacked files
SH256 hash:
e0092d9787dcdc6444342b6be1c84fcbcfbff52110577599db455a61f3f981da
MD5 hash:
db0fabbc7f075bc72451ee8335303820
SHA1 hash:
f50039646ac66e3e3e044ab2f8aac65941a2716d
Detections:
stealc
Create hunting rule
Link:
https://www.unpac.me/results/66390fd9-1001-4e2c-b3d3-fc4f93cfae4d/
Parent samples :
e80e120da34729c9fb7e7d4a684a7260f1346696ee8b3b514b6e512ebfa1bea4
00c66edc8b41592e299f449a6b7a4e3ab949f7cca0c27bba9a279feacc6e5b6b
daf4e8849a3b6011bff41cc2c7decee8c769a4ebf2be3d7316930f40448ddb25
ec9a1bede697caba74ff4666e0317cb3231fe37fbcb9f8821620c52d7d8a4dad
06510b52e07e89b5781f4ee3c7b4d94ff84c03931b3d7d93224294860feaccf4
c98f17dd444209ad0a6d71221b67cd632bc6409686f750bb5118a7e42eca91e0
d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71
91f03b0ae9dcae932e3043b7cb19cf52541504e9a4510501d9cb2f1ddd6d10f4
2e4deff4bfe5c4ce46b2d0a1f875dbc0933ec2e0f0e4a210990352601c29638e
5afff322d4b56afbe4429c6fd83aa2d699c51dbf4f5495b08ac104f07da8c49d
743948a05fa7b9a001b346699bc9fd4d645b755bc7ef73802b2a139288910f24
32d0ae27d9ae49a224785cd08bae82b0ec4e944145cb2f106873f70fc2908fe7
3f9daff50fd608eb15026903bf89ad2aafae0b344f0fd82e9ea82d4071a781d7
2bac0508680cb0cdf61b10a529c4a97dfc0562fe85b740abfef0ee2ff97a9fc2
d9bb5fc7267c854e20e63ef68546da25e71270c36bcee73e328437c891892945
6d70e80c80af977af8b15cb47304b4cbd78759faa406906ed3a9e0a6dac74773
bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe
e48219567f84882f41bb1e957bbd1358e453274ca0d2025505c66779f642bc30
d63d18c67f83e54c77072aa953c5e5c0496a7a4c2ac6ca8bd07e211ee80b3d6c
43e7575547a95e5c4d7b7ad2915c830f252ab206a0baf9691206200a644e7b94
SH256 hash:
5afff322d4b56afbe4429c6fd83aa2d699c51dbf4f5495b08ac104f07da8c49d
MD5 hash:
b20dff2e59e94e48d6449fb22ec6411b
SHA1 hash:
07a0dc8735b048696d8db42ad689ba8c9bbbccc9
Link:
https://www.unpac.me/results/66390fd9-1001-4e2c-b3d3-fc4f93cfae4d/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5afff322d4b5/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/5afff322d4b56afbe4429c6fd83aa2d699c51dbf4f5495b08ac104f07da8c49d

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:Detect_APT29_WINELOADER_Backdoor
Create hunting rule
Author:daniyyell
Description:Detects APT29's WINELOADER backdoor variant used in phishing campaigns, this rule also detect bad pdf,shtml,htm and vbs or maybe more depends
Reference:https://cloud.google.com/blog/topics/threat-intelligence/apt29-wineloader-german-political-parties
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

MarsStealer

Executable exe 5afff322d4b56afbe4429c6fd83aa2d699c51dbf4f5495b08ac104f07da8c49d

(this sample)

  
Link
https://app.any.run/tasks/c029911c-b8b7-4236-8afc-a3a3db51d169
  
Dropped by
PrivateLoader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3173971/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments