MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 74eff35aee68f271e0a9882e41d44abf8f82d058ee4755ddd0832bdc674c520b. 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: 16


Intelligence 16 IOCs YARA 3 File information Comments
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SHA256 hash: 74eff35aee68f271e0a9882e41d44abf8f82d058ee4755ddd0832bdc674c520b
SHA3-384 hash: 93494b6d3fc5481e2d371a78ef9da190c5bc985f0a1ed8dae29ac06fe4401515902490915f1d99e6336729e3675d41e3
SHA1 hash: bd8504d626e13b440f19ccb04123603f7da65b5e
MD5 hash: 330ec924eb2c5b6726993dd0afb7a7af
humanhash: earth-mobile-one-summer
File name:FDSO0987656789000HK.LKH.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:784'384 bytes
First seen:2024-07-18 09:05:14 UTC
Last seen:2024-07-24 16:10:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash fc6683d30d9f25244a50fd5357825e79 (92 x Formbook, 52 x AgentTesla, 23 x SnakeKeylogger)
ssdeep 12288:4YV6MorX7qzuC3QHO9FQVHPF51jgcoEMtbmYYdnD/yozPfi7pBcnKA4nuGYMOSwX:XBXu9HGaVHNMpAD6ozPfyankuVs4oTeB
TLSH T1EFF423C16F44093DD895497BA12B8B34DC23A4FCCBF0079971E6F75AAA8B3D6E1120B5
TrID 31.3% (.EXE) UPX compressed Win32 Executable (27066/9/6)
30.7% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
12.1% (.EXE) Win64 Executable (generic) (10523/12/4)
7.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon d2e8ecb2b2a2b282 (106 x AgentTesla, 106 x Formbook, 24 x RedLineStealer)
Reporter threatcat_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
406
Origin country :
CH CH
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.AutoIt.1413.31343.206.UNOFFICIAL
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Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6698dafc715586f538b3abd5
Tags:
Generic Stealth Trojan Shellcodecrypter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Connection attempt to an infection source
Sending a TCP request to an infection source
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
autoit lolbin masquerade microsoft_visual_cc packed packed packed shell32 upx
Link:
https://www.filescan.io/uploads/6698dafcf1068d66afbee074/reports/dfb908f5-2310-4935-8667-2969ae870ad2/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/74eff35aee68f271e0a9882e41d44abf8f82d058ee4755ddd0832bdc674c520b
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/8a8285d4-d7c0-473d-b356-90398aa0ef41
Result
Threat name:
Remcos
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Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1475793
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Detected Remcos RAT
Drops VBS files to the startup folder
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Snort IDS alert for network traffic
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)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1475793 Sample: FDSO0987656789000HK.LKH.exe Startdate: 18/07/2024 Architecture: WINDOWS Score: 100 39 geoplugin.net 2->39 57 Snort IDS alert for network traffic 2->57 59 Multi AV Scanner detection for domain / URL 2->59 61 Found malware configuration 2->61 63 12 other signatures 2->63 9 FDSO0987656789000HK.LKH.exe 6 2->9         started        13 wscript.exe 1 2->13         started        signatures3 process4 file5 35 C:\Users\user\AppData\Local\...\totted.exe, PE32 9->35 dropped 71 Binary is likely a compiled AutoIt script file 9->71 15 totted.exe 3 9->15         started        73 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->73 19 totted.exe 2 13->19         started        signatures6 process7 file8 37 C:\Users\user\AppData\Roaming\...\totted.vbs, data 15->37 dropped 45 Multi AV Scanner detection for dropped file 15->45 47 Contains functionality to bypass UAC (CMSTPLUA) 15->47 49 Tries to steal Mail credentials (via file registry) 15->49 55 8 other signatures 15->55 21 totted.exe 3 17 15->21         started        51 Detected Remcos RAT 19->51 53 Binary is likely a compiled AutoIt script file 19->53 signatures9 process10 dnsIp11 41 107.175.229.139, 49705, 49706, 8823 AS-COLOCROSSINGUS United States 21->41 43 geoplugin.net 178.237.33.50, 49707, 80 ATOM86-ASATOM86NL Netherlands 21->43 33 C:\ProgramData\remcos\logs.dat, data 21->33 dropped 65 Detected Remcos RAT 21->65 67 Binary is likely a compiled AutoIt script file 21->67 69 Maps a DLL or memory area into another process 21->69 26 totted.exe 1 21->26         started        29 totted.exe 1 21->29         started        31 totted.exe 2 21->31         started        file12 signatures13 process14 signatures15 75 Tries to steal Instant Messenger accounts or passwords 26->75 77 Tries to harvest and steal browser information (history, passwords, etc) 26->77 79 Tries to steal Mail credentials (via file / registry access) 29->79
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/74eff35aee68f271e0a9882e41d44abf8f82d058ee4755ddd0832bdc674c520b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/74eff35aee68f271e0a9882e41d44abf8f82d058ee4755ddd0832bdc674c520b/
Threat name:
Win32.Trojan.Vindor
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Status:
Malicious
First seen:
2024-07-17 14:18:30 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=otx7gwxondzhdyfjraxedvckx6hyfucy5zdvlxoqqmv5yz2mkifq._file
Verdict:
malicious
Label(s):
remcos
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Result
Malware family:
remcos
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Score:
  10/10
Tags:
family:remcos botnet:remotehost collection rat spyware stealer upx
Link:
https://tria.ge/reports/240718-k2qrfsvejd/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
AutoIT Executable
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Drops startup file
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
UPX packed file
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Malware Config
C2 Extraction:
107.175.229.139:8823
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d7da63f4-9c6a-4dff-ab42-1c8870c112de
Unpacked files
SH256 hash:
b0f2b7a864e888b35eca328c53fb1e8853ecffa810bcf6fd95f18e8692a2ff60
MD5 hash:
07f6258d27b422b887be40815dc647b1
SHA1 hash:
2472ebb00e386630397b35f746ca2865677d2104
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/74f5dc3e-bab5-4936-92c2-a9e16ca8308f/
SH256 hash:
93c8b381f044e1ac1d133f49114b5777da366de1f67956feb00ae8f21e80122d
MD5 hash:
f818296d5fd7df66b36f2e6148365dd0
SHA1 hash:
690d6ca628b859f51775bd59834cca167001fe46
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/74f5dc3e-bab5-4936-92c2-a9e16ca8308f/
Parent samples :
b274b2b65f5ec3256ee9676fac8380af1c47457507e93d5b745156f29f386601
e6643fb9224f9a2ce99cf20b5714e5322645fae8046ef9d439ca17d7ac6abd45
79c7358a9ac82f4d547e027ec64b8a9854ef445ff7d1e85a2b39c0e60bc00c99
74eff35aee68f271e0a9882e41d44abf8f82d058ee4755ddd0832bdc674c520b
497a59ce5e1c1e2bdd5e708f21aecd446d9047d17024c73abaeab9d8bfa8c4aa
1f75782173ef3b1b68650a95b7846bb35faa400d53b52fc1ad8b65a86bc72c88
66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490
SH256 hash:
74eff35aee68f271e0a9882e41d44abf8f82d058ee4755ddd0832bdc674c520b
MD5 hash:
330ec924eb2c5b6726993dd0afb7a7af
SHA1 hash:
bd8504d626e13b440f19ccb04123603f7da65b5e
Detections:
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/74f5dc3e-bab5-4936-92c2-a9e16ca8308f/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/74eff35aee68/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/74eff35aee68f271e0a9882e41d44abf8f82d058ee4755ddd0832bdc674c520b

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:SUSP_Imphash_Mar23_3
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:Internal Research
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:upx_largefile
Create hunting rule
Author:k3nr9

File information

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

Malspam

RemcosRAT

Executable exe 74eff35aee68f271e0a9882e41d44abf8f82d058ee4755ddd0832bdc674c520b

(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
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::GetAce
MULTIMEDIA_APICan Play MultimediaWINMM.dll::timeGetTime
WIN_BASE_APIUses Win Base APIKERNEL32.DLL::LoadLibraryA
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetUseConnectionW

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