MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef0fc4d1fd71b53bc88e2a2347195385f1a25b42254de683011fc4388ca796ec. 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


Arechclient2


Vendor detections: 15


Intelligence 15 IOCs 1 YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef0fc4d1fd71b53bc88e2a2347195385f1a25b42254de683011fc4388ca796ec
SHA3-384 hash: 722b19655b7fdba02cf4907fb4926e33435704bf49b0ba50ab6c6c695096a2bf74ee24a833242741f706d0ab5318ad36
SHA1 hash: 667747f8bb3451f56acc2a618c1f91be806a680f
MD5 hash: 499eba0173a1c75ee669125b067f5b2c
humanhash: winter-sink-five-princess
File name:499eba0173a1c75ee669125b067f5b2c.exe
Download: download sample
Signature Arechclient2
Create hunting rule
File size:4'422'240 bytes
First seen:2025-01-19 09:20:14 UTC
Last seen:2025-01-20 08:34:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 657e40fb09b2c5e277b865a7cf2b8089 (6 x AsyncRAT, 4 x Arechclient2, 3 x DanaBot)
ssdeep 98304:cKaAh0104NS7FGwCh1CTLBMtMeUjafSUYGzSxYcM/Ep:vlaf4XCbCTLBgMeUTYSScQEp
TLSH T1102612316152303BD6F529B3F964D1302D69A2282B5899BEC6D0DC0D3C685D6BEFB34B
TrID 68.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.5% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
File icon (PE):PE icon
dhash icon b2e1b496a6cada72 (13 x LummaStealer, 12 x AsyncRAT, 8 x Rhadamanthys)
Reporter abuse_ch
Tags:Arechclient2 exe


Avatar
abuse_ch
Arechclient2 C2:
45.141.87.50:15647

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
45.141.87.50:15647 https://threatfox.abuse.ch/ioc/1314271/

Intelligence

File Origin
# of uploads :
2
# of downloads :
566
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
499eba0173a1c75ee669125b067f5b2c.exe
Verdict:
Malicious activity
Analysis date:
2025-01-19 09:20:56 UTC
Tags:
arechclient2 backdoor stealer rat xor-url generic
Link:
https://app.any.run/tasks/1a02bc52-32c5-4e05-b69e-af4b4a3c317e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Program.Unwanted.5065.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=678e2b35e708b6e7a3ad8427
Tags:
autorun lien
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file in the Windows subdirectories
Creating a process from a recently created file
Creating a window
Creating a file in the %AppData% subdirectories
Launching cmd.exe command interpreter
Connection attempt
Transferring files using the Background Intelligent Transfer Service (BITS)
Enabling the 'hidden' option for recently created files
Creating a file
Launching a process
Сreating synchronization primitives
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug anti-vm CAB crypto evasive expand fingerprint fingerprint installer keylogger keylogger lolbin lolbin microsoft_visual_cc overlay packed packed packed packer_detected rundll32 runonce virus
Link:
https://www.filescan.io/uploads/678cc3ff2d219e36112b06ec/reports/1f0bea5c-3fc3-4d48-8f96-105b7fa20e7b/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/ef0fc4d1fd71b53bc88e2a2347195385f1a25b42254de683011fc4388ca796ec
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:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4f9ea86d-c839-4436-983c-199391a12c29
Result
Threat name:
RedLine, SectopRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1594587
Signature
AI detected suspicious sample
Antivirus detection for dropped file
Connects to many ports of the same IP (likely port scanning)
Found direct / indirect Syscall (likely to bypass EDR)
Found hidden mapped module (file has been removed from disk)
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses known network protocols on non-standard ports
Writes to foreign memory regions
Yara detected RedLine Stealer
Yara detected SectopRAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1594587 Sample: ULFXdQYGIX.exe Startdate: 19/01/2025 Architecture: WINDOWS Score: 100 90 Suricata IDS alerts for network traffic 2->90 92 Malicious sample detected (through community Yara rule) 2->92 94 Antivirus detection for dropped file 2->94 96 9 other signatures 2->96 10 ULFXdQYGIX.exe 8 2->10         started        13 ScanDisp.exe 2->13         started        16 ScanDisp.exe 1 2->16         started        18 ScanDisp.exe 1 2->18         started        process3 file4 78 C:\Windows\Temp\...\ULFXdQYGIX.exe, PE32 10->78 dropped 20 ULFXdQYGIX.exe 19 10->20         started        120 Maps a DLL or memory area into another process 13->120 122 Found direct / indirect Syscall (likely to bypass EDR) 13->122 24 cmd.exe 13->24         started        26 cmd.exe 2 16->26         started        28 cmd.exe 2 18->28         started        signatures5 process6 file7 62 C:\Windows\Temp\...\vcl120.bpl, PE32 20->62 dropped 64 C:\Windows\Temp\...\rtl120.bpl, PE32 20->64 dropped 66 C:\Windows\Temp\...\madExcept_.bpl, PE32 20->66 dropped 74 4 other malicious files 20->74 dropped 106 Multi AV Scanner detection for dropped file 20->106 30 ScanDisp.exe 9 20->30         started        68 C:\Users\user\AppData\Local\...\ntruboxcpddb, PE32 24->68 dropped 34 conhost.exe 24->34         started        36 MSBuild.exe 24->36         started        70 C:\Users\user\AppData\Local\...\wxycyqoucoo, PE32 26->70 dropped 38 MSBuild.exe 1 26->38         started        40 conhost.exe 26->40         started        72 C:\Users\user\AppData\Local\Temp\iydmorjho, PE32 28->72 dropped 108 Writes to foreign memory regions 28->108 110 Maps a DLL or memory area into another process 28->110 42 conhost.exe 28->42         started        44 MSBuild.exe 28->44         started        signatures8 process9 file10 80 C:\Users\user\AppData\Roaming\...\vcl120.bpl, PE32 30->80 dropped 82 C:\Users\user\AppData\Roaming\...\rtl120.bpl, PE32 30->82 dropped 84 C:\Users\user\AppData\...\madExcept_.bpl, PE32 30->84 dropped 86 3 other malicious files 30->86 dropped 128 Switches to a custom stack to bypass stack traces 30->128 130 Found direct / indirect Syscall (likely to bypass EDR) 30->130 46 ScanDisp.exe 1 30->46         started        signatures11 process12 signatures13 124 Maps a DLL or memory area into another process 46->124 126 Switches to a custom stack to bypass stack traces 46->126 49 cmd.exe 5 46->49         started        process14 file15 60 C:\Users\user\AppData\Local\Temp\qytrjkr, PE32 49->60 dropped 98 Writes to foreign memory regions 49->98 100 Found hidden mapped module (file has been removed from disk) 49->100 102 Maps a DLL or memory area into another process 49->102 104 Switches to a custom stack to bypass stack traces 49->104 53 MSBuild.exe 15 18 49->53         started        58 conhost.exe 49->58         started        signatures16 process17 dnsIp18 88 45.141.87.50, 15647, 62774, 62775 CLOUDBACKBONERU Russian Federation 53->88 76 C:\Users\user\AppData\...\Secure Preferences, JSON 53->76 dropped 112 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 53->112 114 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 53->114 116 Tries to harvest and steal browser information (history, passwords, etc) 53->116 118 Tries to steal Crypto Currency Wallets 53->118 file19 signatures20
Score:
34%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/ef0fc4d1fd71b53bc88e2a2347195385f1a25b42254de683011fc4388ca796ec
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef0fc4d1fd71b53bc88e2a2347195385f1a25b42254de683011fc4388ca796ec/
Threat name:
Win32.Backdoor.Sectoprat
Create hunting rule
Status:
Malicious
First seen:
2025-01-14 06:18:04 UTC
File Type:
PE (Exe)
Extracted files:
141
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=54h4jup5og2txseofiruogktqxy2ew2cevg6naybd7cdrdfhs3wa._file
Result
Malware family:
sectoprat
Create hunting rule
Score:
  10/10
Tags:
family:sectoprat discovery rat trojan
Link:
https://tria.ge/reports/250119-lbbehsskhy/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Executes dropped EXE
Loads dropped DLL
SectopRAT
SectopRAT payload
Sectoprat family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b86d2c21-49cc-483f-a18a-df9f978649c3
Unpacked files
SH256 hash:
68bee500e0080f21c003126e73b6d07804d23ac98b2376a8b76c26297d467abe
MD5 hash:
d4dae7149d6e4dab65ac554e55868e3b
SHA1 hash:
b3bea0a0a1f0a6f251bcf6a730a97acc933f269a
Link:
https://www.unpac.me/results/be61bc16-445a-437c-b157-d98acd587323/
SH256 hash:
a6edb3fb6d21dd461da3767a7995034e208f7d6b08997f6cf7ee7b0ea833a8f0
MD5 hash:
cabb58bb5694f8b8269a73172c85b717
SHA1 hash:
9ed583c56385fed8e5e0757ddb2fdf025f96c807
Link:
https://www.unpac.me/results/be61bc16-445a-437c-b157-d98acd587323/
SH256 hash:
5fa1bc983b29587b8763fbf3138e84489c355f5324ffcb542b7f9e478b044551
MD5 hash:
160aabdfd293c514584b885185f2a867
SHA1 hash:
f6434f03f549b32faee753c26f5f46fd3b60178c
Link:
https://www.unpac.me/results/be61bc16-445a-437c-b157-d98acd587323/
SH256 hash:
85438d90c0e20a854c6c70d2bac6644ec46ee3ad8d874fc26897049b7f6d78e4
MD5 hash:
6b915aa529b5ed63fe546da54d567c55
SHA1 hash:
8e7c14fc5eaae0da04c69180d78673881cafc888
Link:
https://www.unpac.me/results/be61bc16-445a-437c-b157-d98acd587323/
SH256 hash:
a4660242a79ee400e581b141c2c9f245cee9b825286b1d048b03041cd86605da
MD5 hash:
bf8a90b2108b69d5c3a7ef3d838ab310
SHA1 hash:
666b4efd1b3e680d51fc3da1b37a7155a3d69ac1
Link:
https://www.unpac.me/results/be61bc16-445a-437c-b157-d98acd587323/
SH256 hash:
218c3d9c770b284e189c36b41fb8cde476643ebd8bb3cac09ccd316be387e3fb
MD5 hash:
2b740dae0f4debc5223e9f297eea7741
SHA1 hash:
30cd68b403a6c166506d8a7a49af77ac0721c6a1
Link:
https://www.unpac.me/results/be61bc16-445a-437c-b157-d98acd587323/
SH256 hash:
40488016188e08a1b2bea97973622b7dbebdc61217d5361db9d0168d785472b6
MD5 hash:
34fbd510d9eec903f035cfc540f25b97
SHA1 hash:
258428e2e1dec40b887858ff30307c11346d077b
Link:
https://www.unpac.me/results/be61bc16-445a-437c-b157-d98acd587323/
SH256 hash:
dda6413f8d833fe5c699ffef07a35c806d2dc0f1e0cb92fb5f1ae4ef20d9d959
MD5 hash:
f6df86c57ae20250b09366077ebc1e39
SHA1 hash:
10a4b6ec9cab9883ac4acdd9cfe92951caaff406
Link:
https://www.unpac.me/results/be61bc16-445a-437c-b157-d98acd587323/
SH256 hash:
e697602b8b198af061e52ac88b51ca034c3ae87fea118bbc8d77f902918bbddb
MD5 hash:
7a043f81e17c63e3960731da0e67abef
SHA1 hash:
ad914e4b34941bee5e054b75ec92a40d370d24b5
Link:
https://www.unpac.me/results/be61bc16-445a-437c-b157-d98acd587323/
SH256 hash:
ef0fc4d1fd71b53bc88e2a2347195385f1a25b42254de683011fc4388ca796ec
MD5 hash:
499eba0173a1c75ee669125b067f5b2c
SHA1 hash:
667747f8bb3451f56acc2a618c1f91be806a680f
Link:
https://www.unpac.me/results/be61bc16-445a-437c-b157-d98acd587323/
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/ef0fc4d1fd71b53bc88e2a2347195385f1a25b42254de683011fc4388ca796ec

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:pe_detect_tls_callbacks
Create hunting rule
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.

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::IsWellKnownSid
ADVAPI32.dll::SetSecurityDescriptorDacl
ADVAPI32.dll::SetSecurityDescriptorGroup
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::SetProcessShutdownParameters
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
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::CreateWindowExW

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