MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efbd7db802da578f99356b825f7c09d48c0ae4387d831cd6a97a6d463a3a1b97. 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


LummaStealer


Vendor detections: 13


Intelligence 13 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: efbd7db802da578f99356b825f7c09d48c0ae4387d831cd6a97a6d463a3a1b97
SHA3-384 hash: 593fc30c8d0db4e601e544aa89134b0faee54f6601ab63827af2b443a4f80ddaaa1458c43181660ede66fde83370f33d
SHA1 hash: f43eacc6f779a0305172455caace5b3757937965
MD5 hash: a3548ac583ded03dff9ef54df366de52
humanhash: nebraska-robin-jupiter-lactose
File name:YTRNYRXC.exe
Download: download sample
Signature LummaStealer
Create hunting rule
File size:2'472'931 bytes
First seen:2024-12-16 15:39:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d7e2fd259780271687ffca462b9e69b7 (6 x AsyncRAT, 6 x LummaStealer, 6 x AurotunStealer)
ssdeep 49152:cfU4UjyKz2xOm1td6F+PjzWewC2hEM9RvMBnXMvj/ynKIVoT8GiWZ/JyVWTKZOmu:cfUbZz2xPtddjcwMLvM8LuHVkTiyJyVG
TLSH T199B5023291614033E7F106B7AD2896347E6CA738275088AAE3D4FD1D7EB80D5A7F7252
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10522/11/4)
7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon b2e1b496a6cada72 (13 x LummaStealer, 12 x AsyncRAT, 8 x Rhadamanthys)
Reporter abuse_ch
Tags:CHE exe geo LummaStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
432
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
547452f4ef43a983986dd3cd25cd2e40.lnk
Verdict:
Malicious activity
Analysis date:
2024-12-16 08:38:54 UTC
Tags:
lumma stealer
Link:
https://app.any.run/tasks/5dd62a0a-407e-4efb-bc20-78fdc633d81b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Heur.20230427052042801674698.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67604be08fb73f13afcdcb02
Tags:
dropper virus sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the Windows subdirectories
Creating a process from a recently created file
Creating a file in the %temp% directory
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Launching cmd.exe command interpreter
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context CAB crypto expand explorer fingerprint installer lolbin microsoft_visual_cc overlay packed packed packer_detected runonce
Link:
https://www.filescan.io/uploads/676049da48e5ba21b9d92f0a/reports/acebac44-1818-4eab-9c1e-8399f0c8e82f/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/efbd7db802da578f99356b825f7c09d48c0ae4387d831cd6a97a6d463a3a1b97
Result
Verdict:
SUSPICIOUS
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/67b2c724-ac3d-44f8-b775-35cb1f8b0d4c
Result
Threat name:
LummaC
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1576210
Signature
AI detected suspicious sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects code into the Windows Explorer (explorer.exe)
LummaC encrypted strings found
Machine Learning detection for dropped file
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected LummaC Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1576210 Sample: YTRNYRXC.exe Startdate: 16/12/2024 Architecture: WINDOWS Score: 100 52 abrasigehs.my 2->52 60 Suricata IDS alerts for network traffic 2->60 62 Found malware configuration 2->62 64 Antivirus detection for URL or domain 2->64 66 7 other signatures 2->66 11 YTRNYRXC.exe 3 2->11         started        signatures3 process4 file5 42 C:\Windows\Temp\...\YTRNYRXC.exe, PE32 11->42 dropped 14 YTRNYRXC.exe 12 11->14         started        process6 file7 44 C:\Windows\Temp\...\UXCore.dll, PE32 14->44 dropped 46 C:\Windows\Temp\...\Oriel.dll, PE32 14->46 dropped 48 C:\Windows\Temp\...\Dashboard.exe, PE32 14->48 dropped 50 C:\Windows\Temp\...\msvcr80.dll, PE32 14->50 dropped 17 Dashboard.exe 6 14->17         started        process8 file9 34 C:\Users\user\AppData\Roaming\...\UXCore.dll, PE32 17->34 dropped 36 C:\Users\user\AppData\...\Dashboard.exe, PE32 17->36 dropped 38 C:\Users\user\AppData\Roaming\...\msvcr80.dll, PE32 17->38 dropped 56 Switches to a custom stack to bypass stack traces 17->56 58 Found direct / indirect Syscall (likely to bypass EDR) 17->58 21 Dashboard.exe 1 17->21         started        signatures10 process11 signatures12 68 Maps a DLL or memory area into another process 21->68 70 Switches to a custom stack to bypass stack traces 21->70 72 Found direct / indirect Syscall (likely to bypass EDR) 21->72 24 cmd.exe 2 21->24         started        process13 file14 40 C:\Users\user\AppData\Local\...\qtiijpwxwwcyk, PE32 24->40 dropped 74 Injects code into the Windows Explorer (explorer.exe) 24->74 76 Writes to foreign memory regions 24->76 78 Found hidden mapped module (file has been removed from disk) 24->78 80 3 other signatures 24->80 28 explorer.exe 24->28         started        32 conhost.exe 24->32         started        signatures15 process16 dnsIp17 54 abrasigehs.my 104.21.96.1, 443, 49712, 49713 CLOUDFLARENETUS United States 28->54 82 System process connects to network (likely due to code injection or exploit) 28->82 84 Query firmware table information (likely to detect VMs) 28->84 86 Found many strings related to Crypto-Wallets (likely being stolen) 28->86 88 4 other signatures 28->88 signatures18
Score:
86%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/efbd7db802da578f99356b825f7c09d48c0ae4387d831cd6a97a6d463a3a1b97
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/efbd7db802da578f99356b825f7c09d48c0ae4387d831cd6a97a6d463a3a1b97/
Threat name:
Win32.Ransomware.LummaC
Create hunting rule
Status:
Malicious
First seen:
2024-12-16 03:16:00 UTC
File Type:
PE (Exe)
Extracted files:
41
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=566x3oac3jly7gjvnobf67aj2sgavzbypwbrzvvjpjwumor2dolq._file
Verdict:
malicious
Label(s):
lummastealer
Create hunting rule
Similar samples:
error
LummaStealer
Result
Malware family:
lumma
Create hunting rule
Score:
  10/10
Tags:
family:lumma discovery spyware stealer
Link:
https://tria.ge/reports/241216-s37elatphs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Browser Information Discovery
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Executes dropped EXE
Loads dropped DLL
Lumma Stealer, LummaC
Lumma family
Malware Config
C2 Extraction:
https://sordid-snaked.cyou/api
https://awake-weaves.cyou/api
https://wrathful-jammy.cyou/api
https://debonairnukk.xyz/api
https://diffuculttan.xyz/api
https://effecterectz.xyz/api
https://deafeninggeh.biz/api
https://immureprech.biz/api
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e62a6455-c9e5-463d-9cee-3ba2f0a1e580
Unpacked files
SH256 hash:
68bee500e0080f21c003126e73b6d07804d23ac98b2376a8b76c26297d467abe
MD5 hash:
d4dae7149d6e4dab65ac554e55868e3b
SHA1 hash:
b3bea0a0a1f0a6f251bcf6a730a97acc933f269a
Link:
https://www.unpac.me/results/63934a22-cdb0-41f0-a6de-73596361f474/
SH256 hash:
a6edb3fb6d21dd461da3767a7995034e208f7d6b08997f6cf7ee7b0ea833a8f0
MD5 hash:
cabb58bb5694f8b8269a73172c85b717
SHA1 hash:
9ed583c56385fed8e5e0757ddb2fdf025f96c807
Link:
https://www.unpac.me/results/63934a22-cdb0-41f0-a6de-73596361f474/
SH256 hash:
cb8928ff2faf2921b1eddc267dce1bb64e6fee4d15b68cd32588e0f3be116b03
MD5 hash:
43143abb001d4211fab627c136124a44
SHA1 hash:
edb99760ae04bfe68aaacf34eb0287a3c10ec885
Link:
https://www.unpac.me/results/63934a22-cdb0-41f0-a6de-73596361f474/
SH256 hash:
6a68c68175e8ddfaf71ed585e165fc8020ea5619cd31fdd3387e82eadf755837
MD5 hash:
f0af68dbd2eede0efaa5b2b1a16242f2
SHA1 hash:
ee0baac19b5da2d8236bee85a375f5009d32d6fa
Link:
https://www.unpac.me/results/63934a22-cdb0-41f0-a6de-73596361f474/
SH256 hash:
ff27460bf37c097a1283c1a9719e9d069477b1f89670fd90efdfa64cd041d48e
MD5 hash:
37bda666174fd10f9062d0d9e7fd876c
SHA1 hash:
79aa46caf7ad6d0a2ad93830e62103f3dc7422cc
Link:
https://www.unpac.me/results/63934a22-cdb0-41f0-a6de-73596361f474/
SH256 hash:
19473a49eb42f7c321e36f9f15b1426c8f3bb567de51e4c2b371dab02585e0db
MD5 hash:
db5b6e83bb963150275069f9f66a2cf1
SHA1 hash:
8ee4877b150339d22ba27aa69e384a32b5077348
Link:
https://www.unpac.me/results/63934a22-cdb0-41f0-a6de-73596361f474/
SH256 hash:
efbd7db802da578f99356b825f7c09d48c0ae4387d831cd6a97a6d463a3a1b97
MD5 hash:
a3548ac583ded03dff9ef54df366de52
SHA1 hash:
f43eacc6f779a0305172455caace5b3757937965
Link:
https://www.unpac.me/results/63934a22-cdb0-41f0-a6de-73596361f474/
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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
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)

File information

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

Web download

LummaStealer

Executable exe efbd7db802da578f99356b825f7c09d48c0ae4387d831cd6a97a6d463a3a1b97

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3352241/
  
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
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::ConvertStringSecurityDescriptorToSecurityDescriptorW
ADVAPI32.dll::CreateWellKnownSid
ADVAPI32.dll::SetEntriesInAclW
ADVAPI32.dll::SetEntriesInAclA
ADVAPI32.dll::SetNamedSecurityInfoW
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoInitializeSecurity
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::SetSecurityDescriptorDacl
ADVAPI32.dll::SetSecurityDescriptorGroup
ADVAPI32.dll::SetSecurityDescriptorOwner
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::OpenProcess
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileMappingW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_BCRYPT_APICan Encrypt FilesADVAPI32.dll::DecryptFileW
WIN_CRYPT_APIUses Windows Crypt APIADVAPI32.dll::CryptAcquireContextW
ADVAPI32.dll::CryptCreateHash
ADVAPI32.dll::CryptGetHashParam
ADVAPI32.dll::CryptHashData
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryInfoKeyW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::ChangeServiceConfigW
ADVAPI32.dll::ControlService
ADVAPI32.dll::OpenSCManagerW
ADVAPI32.dll::OpenServiceW
ADVAPI32.dll::QueryServiceConfigW
ADVAPI32.dll::QueryServiceStatus
WIN_USER_APIPerforms GUI ActionsUSER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

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