MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb. 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


RemcosRAT


Vendor detections: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb
SHA3-384 hash: 8f60a65d644c9fa5b1445195ce085ba2f1b8a0d68b5ae4c73b470283754db0addcebc03f2f5a933baa1c6fbdcd312f73
SHA1 hash: 335d696e7448570c632dc0b6f3aadfe69262d2ef
MD5 hash: 23e67f856583bc4edbab6d66fb5d3519
humanhash: victor-lemon-shade-whiskey
File name:z6FORMATOPROVEEDORESMETAX.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:392'803 bytes
First seen:2024-04-29 19:04:21 UTC
Last seen:2024-05-02 06:06:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6e7f9a29f2c85394521a08b9f31f6275 (278 x GuLoader, 44 x RemcosRAT, 40 x VIPKeylogger)
ssdeep 6144:HT4DtVpZI3UNWc3n5C3Tsc8XANjZ8S+ztjsNtsZ7X9/wkm8mKuUE2OCQpPAvFeVY:HTgYEztxwquUfNQZAvsl9pSTlDt
Threatray 1'922 similar samples on MalwareBazaar
TLSH T1B784121072518947CA3E88B2AC3F6FA64AB5DD229535FF1713A1771E2CF3BB2941E205
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon e1c0f496dadadcac (2 x RemcosRAT, 2 x GuLoader)
Reporter FXOLabs
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
4
# of downloads :
350
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb.exe
Verdict:
Malicious activity
Analysis date:
2024-04-29 19:06:15 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/38462c9d-ea26-454a-99b4-aaf41b7d33af

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file
Launching a process
Running batch commands
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/94f90f21-9fbd-4a9c-aa37-684d8fc85faa
Result
Threat name:
GuLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1433637
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Obfuscated command line found
Powershell drops PE file
Sigma detected: Wab/Wabmig Unusual Parent Or Child Processes
Snort IDS alert for network traffic
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected GuLoader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1433637 Sample: z6FORMATOPROVEEDORESMETAX.exe Startdate: 29/04/2024 Architecture: WINDOWS Score: 100 46 learfo55ozj01.duckdns.org 2->46 48 ricohltd.top 2->48 50 geoplugin.net 2->50 58 Snort IDS alert for network traffic 2->58 60 Found malware configuration 2->60 62 Antivirus detection for URL or domain 2->62 66 11 other signatures 2->66 10 z6FORMATOPROVEEDORESMETAX.exe 1 32 2->10         started        signatures3 64 Uses dynamic DNS services 46->64 process4 file5 42 C:\Users\user\...\Fastkurspolitikken.Vol, ASCII 10->42 dropped 72 Suspicious powershell command line found 10->72 14 powershell.exe 20 10->14         started        signatures6 process7 file8 44 C:\Users\...\z6FORMATOPROVEEDORESMETAX.exe, PE32 14->44 dropped 80 Obfuscated command line found 14->80 82 Writes to foreign memory regions 14->82 84 Found suspicious powershell code related to unpacking or dynamic code loading 14->84 86 Powershell drops PE file 14->86 18 wab.exe 5 15 14->18         started        23 conhost.exe 14->23         started        25 cmd.exe 1 14->25         started        signatures9 process10 dnsIp11 52 learfo55ozj01.duckdns.org 193.222.96.21, 29871, 49725, 49726 SWISSCOMSwisscomSwitzerlandLtdCH Germany 18->52 54 ricohltd.top 104.21.60.38, 443, 49723 CLOUDFLARENETUS United States 18->54 56 geoplugin.net 178.237.33.50, 49727, 80 ATOM86-ASATOM86NL Netherlands 18->56 40 C:\Users\user\AppData\Roaming\mqerms.dat, data 18->40 dropped 68 Maps a DLL or memory area into another process 18->68 70 Installs a global keyboard hook 18->70 27 wab.exe 1 18->27         started        30 wab.exe 1 18->30         started        32 wab.exe 14 18->32         started        34 cmd.exe 1 18->34         started        file12 signatures13 process14 signatures15 74 Tries to steal Instant Messenger accounts or passwords 27->74 76 Tries to harvest and steal browser information (history, passwords, etc) 27->76 78 Tries to steal Mail credentials (via file / registry access) 30->78 36 conhost.exe 34->36         started        38 reg.exe 1 1 34->38         started        process16
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-04-29 05:21:27 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
13 of 38 (34.21%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=imyz7j4wy22ueqtoj2ctujvbfwnbzvewq6dyjbffxlui2jdgadfq._file
Verdict:
unknown
Similar samples:
00db1acc412cdb3aa45f4d55c18785ae9e8c8d7d2dcfacd8306d1f79a5c20a8c
RemcosRAT
086fd488622c16461d2c60ca3cd42a7d5147978f1624e51a04c7ceedcaa71c6c
RemcosRAT
33d004dfe611ea39e022f1373189184c9bbc5866eccdf2ada38a794fbe717fc6
RemcosRAT
3854783710a249c1b8d553d298623ec63cc957281d703af14cf778bf18c06a34
RemcosRAT
74fc7f4f9d1789c40449c4e0536f8a77ca7c46d7c748fce0caf8b8f57982e291
RemcosRAT
9d3e08381fcf52ee5397eebffe263bfb01850a54c0f23c3b386b76fe3a0d25f0
RemcosRAT
9f17b745e501ad2a734116787d82e350297e71e7eb1ef371acb31a37a0ee7e86
RemcosRAT
b67c5941b8a82c44ee8c876e53fc0435d8d5653491b6c61ef0ec5ee92bbfbed0
RemcosRAT
fa55a0efc03c0f64de8c1775fb0ca1a744f7b4f91e4e7b32c93ebe1a9d3952f7
RemcosRAT
+ 1'912 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader collection downloader persistence
Link:
https://tria.ge/reports/240429-xrhdjsad32/
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Guloader,Cloudeye
Unpacked files
SH256 hash:
43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb
MD5 hash:
23e67f856583bc4edbab6d66fb5d3519
SHA1 hash:
335d696e7448570c632dc0b6f3aadfe69262d2ef
Link:
https://www.unpac.me/results/2c0d04b3-d1ca-4e62-bc93-c5cd648fe4d8/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/43319fa796c6/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/43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb

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:NSIS_April_2024
Create hunting rule
Author:NDA0N
Description:Detects NSIS installers

File information

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

Malspam

RemcosRAT

Executable exe 43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb

(this sample)

  
Delivery method
Distributed via e-mail attachment

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
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::SetFileSecurityW
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

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