MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c506ac55f61aac8aa988bf1d584988cc27faaa3ffd6a97625f5dc8f6debf9c93. 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


Stealc


Vendor detections: 16


Intelligence 16 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c506ac55f61aac8aa988bf1d584988cc27faaa3ffd6a97625f5dc8f6debf9c93
SHA3-384 hash: e479d06a32a22fc66c0d650437ac345c4b9184c9fe9b09c00c036c50e9eb8e150702b2e3b255d6311cf2916b0a88b0cc
SHA1 hash: a6e91b1ea99d9c531f0f42ac42782eb8bd499103
MD5 hash: 4a9d3b5099ab214c2fc1ede02bb06bfe
humanhash: virginia-summer-colorado-gee
File name:4a9d3b5099ab214c2fc1ede02bb06bfe.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:1'879'040 bytes
First seen:2024-12-18 14:04:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 24576:bjbWLm0aiTvjFoAU56Q9409g9gp/tXVwdGh1hrXvYKsN1UM2aVr8uLsst6UoQGgV:bHrirMlphWGXD8J59nowXJPU
Threatray 5'997 similar samples on MalwareBazaar
TLSH T16C953309CEB24BA6CDAC2F34A9039E32ACF8458679D35E16E52135ACD74F6213787D31
TrID 42.7% (.EXE) Win32 Executable (generic) (4504/4/1)
19.2% (.EXE) OS/2 Executable (generic) (2029/13)
19.0% (.EXE) Generic Win/DOS Executable (2002/3)
18.9% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter abuse_ch
Tags:exe Stealc

Intelligence

File Origin
# of uploads :
1
# of downloads :
430
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-12-17 09:34:58 UTC
Tags:
amadey botnet stealer loader auto coinminer themida rhadamanthys arch-exec lumma stealc cryptbot credentialflusher
Link:
https://app.any.run/tasks/f7e229d7-ed57-4366-8866-7f8aad958928

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Evo-gen.15156.10851.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6762d69a653a8698dfda97db
Tags:
vmdetect virus xpack spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
Connection attempt to an infection source
Behavior that indicates a threat
DNS request
Connection attempt
Sending a custom TCP request
Query of malicious DNS domain
Sending a TCP request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm packed packed packer_detected
Link:
https://www.filescan.io/uploads/6762d6986ea16b4d3d65a6f5/reports/d08eec61-fc2e-4651-a4cf-94b733b51c06/overview
Verdict:
Malicious
Labled as:
Symmi.Generic
Link:
https://www.hybrid-analysis.com/sample/c506ac55f61aac8aa988bf1d584988cc27faaa3ffd6a97625f5dc8f6debf9c93
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:
Unknown
Link:
https://analyze.intezer.com/analyses/0cdc9f0e-3bc7-401d-b1fb-d1a536d602d1
Result
Threat name:
LummaC, Stealc
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1577615
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Disable Windows Defender notifications (registry)
Disable Windows Defender real time protection (registry)
Disables Windows Defender Tamper protection
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
LummaC encrypted strings found
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies windows update settings
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Query firmware table information (likely to detect VMs)
Suricata IDS alerts for network traffic
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Yara detected LummaC Stealer
Yara detected Powershell download and execute
Yara detected Stealc
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1577615 Sample: 0Vwp4nJQOc.exe Startdate: 18/12/2024 Architecture: WINDOWS Score: 100 22 sweepyribs.lat 2->22 24 grannyejh.lat 2->24 32 Suricata IDS alerts for network traffic 2->32 34 Found malware configuration 2->34 36 Antivirus detection for URL or domain 2->36 38 10 other signatures 2->38 7 0Vwp4nJQOc.exe 2 2->7         started        signatures3 process4 dnsIp5 26 185.215.113.16, 49714, 80 WHOLESALECONNECTIONSNL Portugal 7->26 28 grannyejh.lat 172.67.179.109, 443, 49702, 49703 CLOUDFLARENETUS United States 7->28 18 C:\...\Y7ZDCQ64S20R844L1ISK4MGRG5EQM.exe, PE32 7->18 dropped 20 C:\Users\...\B0BK462N05F0Y9J92EYZXL0D9.exe, PE32 7->20 dropped 40 Query firmware table information (likely to detect VMs) 7->40 42 Tries to harvest and steal ftp login credentials 7->42 44 Tries to harvest and steal browser information (history, passwords, etc) 7->44 46 7 other signatures 7->46 12 Y7ZDCQ64S20R844L1ISK4MGRG5EQM.exe 9 1 7->12         started        15 B0BK462N05F0Y9J92EYZXL0D9.exe 13 7->15         started        file6 signatures7 process8 dnsIp9 48 Antivirus detection for dropped file 12->48 50 Detected unpacking (changes PE section rights) 12->50 52 Machine Learning detection for dropped file 12->52 60 7 other signatures 12->60 30 185.215.113.206, 49715, 80 WHOLESALECONNECTIONSNL Portugal 15->30 54 Tries to detect sandboxes and other dynamic analysis tools (window names) 15->54 56 Tries to evade debugger and weak emulator (self modifying code) 15->56 58 Hides threads from debuggers 15->58 signatures10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c506ac55f61aac8aa988bf1d584988cc27faaa3ffd6a97625f5dc8f6debf9c93
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c506ac55f61aac8aa988bf1d584988cc27faaa3ffd6a97625f5dc8f6debf9c93/
Threat name:
Win32.Trojan.Symmi
Create hunting rule
Status:
Malicious
First seen:
2024-12-17 12:20:05 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yudkyvpwdkwivkmix4ovqsmizqt7vkr77vvjoys7lxepnxv7tsjq._file
Verdict:
malicious
Label(s):
lummastealer
Create hunting rule
Similar samples:
003b43813ec5522429efc587a873871a2d6fc14c4c9c6008a7d27bce0920db19
Stealc
09bae49e2d08d3316490b621a37fa44ec46eb894133664fffb2b6202e7364c94
Stealc
476c96f2c3b7810f96b535ae053b2daf1cc1c1154e81959afa01e0fb2a9aed72
Stealc
65bbaec08da3f5f231efb44ddb1da44d6d4adfd9fc0fffe385f3b9d700681a63
Stealc
80ad8a72e6f252005e02bbf6ea7b3502955d3a22619e7e0f132013e349bdcb19
Stealc
a1aa2f3960356ac618995c25c51a91cabb963a878a45ac0213bbe5bc478772ef
Stealc
adbf3b490b2f6eeb173eb8c2734b86a290fe7ceebd65814ebed39453cca11ac7
Stealc
e99443934269e932c08bf7928da5ff5c5fae2cc72794380d5f7f7a2d0f7bc46e
Stealc
ec190048a1605cf63449efa1cc11e2679189283f89afc8b8d035c604c2f91569
Stealc
error
Stealc
+ 5'987 additional samples on MalwareBazaar
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:lumma family:stealc botnet:stok discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/241218-rdvh3asncm/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Browser Information Discovery
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks BIOS information in registry
Executes dropped EXE
Identifies Wine through registry keys
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Windows security modification
Downloads MZ/PE file
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Lumma Stealer, LummaC
Lumma family
Modifies Windows Defender Real-time Protection settings
Stealc
Stealc family
Malware Config
C2 Extraction:
http://185.215.113.206
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5f0d6dad-cd08-4b14-95bb-4d5e711b8a7c
Unpacked files
SH256 hash:
e88fd4757b438eaea71922e8e4674a95279b535913691fb5d8b154aa6f0e153d
MD5 hash:
d2fe2b7e361441b0125dcb4ba1299ec4
SHA1 hash:
800da25fa22423d442423a3153a0f18a04f9c1c7
Link:
https://www.unpac.me/results/a131d14f-b4fe-4672-9472-1206d28f3bb2/
SH256 hash:
c506ac55f61aac8aa988bf1d584988cc27faaa3ffd6a97625f5dc8f6debf9c93
MD5 hash:
4a9d3b5099ab214c2fc1ede02bb06bfe
SHA1 hash:
a6e91b1ea99d9c531f0f42ac42782eb8bd499103
Link:
https://www.unpac.me/results/a131d14f-b4fe-4672-9472-1206d28f3bb2/
Malware family:
Lumma
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c506ac55f61a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

Stealc

Executable exe c506ac55f61aac8aa988bf1d584988cc27faaa3ffd6a97625f5dc8f6debf9c93

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3245480/
  
Delivery method
Distributed via web download

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 (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical

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