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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b447cfa88f6896a02d8aee885d8803b2cb0c61f0a5934d4017f372bb8bc3a2ca. 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: 17


Intelligence 17 IOCs YARA File information Comments 1

SHA256 hash: b447cfa88f6896a02d8aee885d8803b2cb0c61f0a5934d4017f372bb8bc3a2ca
SHA3-384 hash: ec3eddc243909a1b8163856d865e4fe14d8019af90901ce5dbdf41c0b81bed7d6ea2503a86a342c2be215ba3162f0f99
SHA1 hash: 0bc7bc23ee378cbfd909251a99b7c0492ddbbb0e
MD5 hash: 9c0944dc238631d0847d2e9137e28dd0
humanhash: finch-orange-july-august
File name:9c0944dc238631d0847d2e9137e28dd0
Download: download sample
Signature RemcosRAT
File size:363'107 bytes
First seen:2023-12-18 07:18:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b1a57b635b23ffd553b3fd1e0960b2bd (39 x Formbook, 29 x Loki, 27 x AgentTesla)
ssdeep 6144:bhjmbz7D+yqLQeUCiKJZ1PrmG6E/nc3PrC2grR7DnK3qaW5Z1uX0rLvg:cDpxCiKrFiNE/ne2xljK3qDhA9
Threatray 576 similar samples on MalwareBazaar
TLSH T13E74231712B05777E0D741B22D3A15AF9FF946262D180B47AB204FBBB9782C4D92272F
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) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
338
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
Request for Quotation-V-40795.xls
Verdict:
Malicious activity
Analysis date:
2023-12-18 06:17:49 UTC
Tags:
opendir rat remcos remote loader exploit cve-2017-11882 stealer

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

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a recently created process
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control installer lolbin overlay packed shell32
Result
Threat name:
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to modify clipboard data
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
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
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)
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1363807 Sample: cAWdsvyJJ5.exe Startdate: 18/12/2023 Architecture: WINDOWS Score: 100 42 unllin.com 2->42 44 geoplugin.net 2->44 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 Antivirus detection for URL or domain 2->62 64 7 other signatures 2->64 9 cAWdsvyJJ5.exe 18 2->9         started        12 dmiir.exe 2->12         started        15 dmiir.exe 2->15         started        signatures3 process4 file5 40 C:\Users\user\AppData\Local\Temp\amhsji.exe, PE32 9->40 dropped 17 amhsji.exe 1 2 9->17         started        68 Multi AV Scanner detection for dropped file 12->68 70 Contains functionality to bypass UAC (CMSTPLUA) 12->70 72 Contains functionalty to change the wallpaper 12->72 76 6 other signatures 12->76 21 dmiir.exe 12->21         started        74 Maps a DLL or memory area into another process 15->74 23 dmiir.exe 15->23         started        signatures6 process7 file8 38 C:\Users\user\AppData\Roaming\...\dmiir.exe, PE32 17->38 dropped 50 Multi AV Scanner detection for dropped file 17->50 52 Contains functionality to bypass UAC (CMSTPLUA) 17->52 54 Tries to steal Mail credentials (via file registry) 17->54 56 10 other signatures 17->56 25 amhsji.exe 3 13 17->25         started        signatures9 process10 dnsIp11 46 unllin.com 91.92.252.51, 3211, 49704, 49705 THEZONEBG Bulgaria 25->46 48 geoplugin.net 178.237.33.50, 49706, 80 ATOM86-ASATOM86NL Netherlands 25->48 66 Maps a DLL or memory area into another process 25->66 29 amhsji.exe 1 25->29         started        32 amhsji.exe 1 25->32         started        34 amhsji.exe 2 25->34         started        36 amhsji.exe 25->36         started        signatures12 process13 signatures14 78 Tries to steal Instant Messenger accounts or passwords 29->78 80 Tries to steal Mail credentials (via file / registry access) 29->80 82 Tries to harvest and steal browser information (history, passwords, etc) 32->82
Threat name:
Win32.Trojan.Znyonm
Status:
Malicious
First seen:
2023-12-18 02:43:32 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:chi'm collection persistence rat spyware stealer upx
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
UPX packed file
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
unllin.com:3211
Unpacked files
SH256 hash:
e558fcfd2f4c600b16d8d76be4459a178745884eedd040183ce38bb47cf303e2
MD5 hash:
49104c3178c1583834f753c279f17ae9
SHA1 hash:
a918fe77b4f4b4c7fe5a58a8f33cea5098497764
Detections:
Remcos win_remcos_w0 win_remcos_auto malware_windows_remcos_rat INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM win_remcos_rat_unpacked
SH256 hash:
bf56add609e397a7b147c59c7e70551996070321b8244a9c41b2cfff5ba62d28
MD5 hash:
f4b40538056902aa7d6f206be518ffa7
SHA1 hash:
93188fc7755b282c8efa46fd428147d67567f76f
SH256 hash:
b447cfa88f6896a02d8aee885d8803b2cb0c61f0a5934d4017f372bb8bc3a2ca
MD5 hash:
9c0944dc238631d0847d2e9137e28dd0
SHA1 hash:
0bc7bc23ee378cbfd909251a99b7c0492ddbbb0e
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Web download

RemcosRAT

Executable exe b447cfa88f6896a02d8aee885d8803b2cb0c61f0a5934d4017f372bb8bc3a2ca

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2023-12-18 07:18:42 UTC

url : hxxp://85.195.105.118/2351/wlanext.exe