MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 779fe92ccc2fcb737c36756838a50a12d290c3e55cf7a18082abca41cd95c9b4. 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 5 File information Comments

SHA256 hash: 779fe92ccc2fcb737c36756838a50a12d290c3e55cf7a18082abca41cd95c9b4
SHA3-384 hash: 5af505abe494f280553619e168fc4bd2fa439bcfd8f96d585043158a89db3130b824e9071dcaf5a2727e81785b8cfb03
SHA1 hash: 9c7bef1eb626f0ead3a2696098b184766a446a94
MD5 hash: 28110f7632e3dba77181b865558e94ad
humanhash: lamp-spring-video-may
File name:SecuriteInfo.com.Gen.Variant.Nemesis.1798.14766.31861
Download: download sample
Signature RemcosRAT
File size:495'895 bytes
First seen:2022-11-16 05:40:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 29b61e5a552b3a9bc00953de1c93be41 (174 x Formbook, 82 x AgentTesla, 81 x Loki)
ssdeep 12288:ckzCq/QFTMm40cNs4htJ+GtS+yB1HlwTiDnwdwolkQ:ckzCtl+eSJ+cSZBsWDnwdwot
Threatray 2'210 similar samples on MalwareBazaar
TLSH T19FB4230732D1F41BED4BA2B042E2573EC7BB962029099693DF0D3D9A965231FC337295
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 00000c353034d4c0 (20 x SnakeKeylogger, 3 x Formbook, 3 x RemcosRAT)
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
179
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
SecuriteInfo.com.Gen.Variant.Nemesis.1798.14766.31861
Verdict:
Malicious activity
Analysis date:
2022-11-16 05:45:39 UTC
Tags:
rat remcos

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

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Verdict:
Malicious
Threat level:
  10/10
Confidence:
80%
Tags:
nemesis overlay packed shell32.dll threat
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.
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Installs a global keyboard hook
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: Remcos
Uses dynamic DNS services
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 747225 Sample: SecuriteInfo.com.Gen.Varian... Startdate: 16/11/2022 Architecture: WINDOWS Score: 100 46 Multi AV Scanner detection for domain / URL 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 52 6 other signatures 2->52 7 SecuriteInfo.com.Gen.Variant.Nemesis.1798.14766.31861.exe 18 2->7         started        10 bcldmnnar.exe 2->10         started        13 bcldmnnar.exe 2->13         started        process3 file4 28 C:\Users\user\AppData\Local\Temp\skenfy.exe, PE32 7->28 dropped 15 skenfy.exe 1 2 7->15         started        56 Antivirus detection for dropped file 10->56 58 Multi AV Scanner detection for dropped file 10->58 60 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 10->60 64 3 other signatures 10->64 19 bcldmnnar.exe 10->19         started        62 Maps a DLL or memory area into another process 13->62 21 bcldmnnar.exe 13->21         started        signatures5 process6 file7 32 C:\Users\user\AppData\...\bcldmnnar.exe, PE32 15->32 dropped 38 Antivirus detection for dropped file 15->38 40 Multi AV Scanner detection for dropped file 15->40 42 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->42 44 4 other signatures 15->44 23 skenfy.exe 2 16 15->23         started        signatures8 process9 dnsIp10 34 ucremcz1.ddns.net 185.216.71.149, 1823, 49695 CLOUDCOMPUTINGDE Germany 23->34 36 geoplugin.net 178.237.33.50, 49696, 80 ATOM86-ASATOM86NL Netherlands 23->36 30 C:\Users\user\AppData\Roaming\...\logs.dat, data 23->30 dropped 54 Installs a global keyboard hook 23->54 file11 signatures12
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2022-11-16 02:38:56 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
24 of 26 (92.31%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:uc persistence rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
ucremcz1.ddns.net:1823
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
c2296809155417083c5c50349b1c817a942c72a3411251fbcd6900558be81ed1
MD5 hash:
2dbb39ff68e2110693f6fa79a766c3be
SHA1 hash:
6eccdf701150d004c49aff4070f0f34c16ae1a0b
Detections:
Remcos win_remcos_auto
SH256 hash:
961510fa6326ddfa21dcc166662e44cef8abc79c8b45775538a4979eabcb3d41
MD5 hash:
f0c5454a953abf0a0710ee4ec83e8a3f
SHA1 hash:
364400e40431b185020ca845128104abe3a94fea
SH256 hash:
779fe92ccc2fcb737c36756838a50a12d290c3e55cf7a18082abca41cd95c9b4
MD5 hash:
28110f7632e3dba77181b865558e94ad
SHA1 hash:
9c7bef1eb626f0ead3a2696098b184766a446a94
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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information


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

Comments