MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1ad7a11b90fe0a21efb62ed36e1e9b1de9071cd6e73a59caca933aa81ea54d94. 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: 18


Intelligence 18 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1ad7a11b90fe0a21efb62ed36e1e9b1de9071cd6e73a59caca933aa81ea54d94
SHA3-384 hash: b065665d7fc4df13e1a39cab9e09d824bb2b549f2daf70592871e6f2b0470d8cc35abc728fba8240b8936f544c0971aa
SHA1 hash: 096c05d5a18739c391e7cc57ee4c6b9458495b7c
MD5 hash: 4de0ac1331956b693768351a594207f0
humanhash: delta-gee-jig-oven
File name:file
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:482'304 bytes
First seen:2023-01-20 13:56:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c9b0c44044380df67a7de0c7865c0e2a (9 x RemcosRAT)
ssdeep 6144:kbdjQFiTrgVohW1ydxCrLkE7ZFCSq1zeH4L5WIMOHsAOZZL1XBcYc4:kbdUYCohW1kMfkEbCSqxeYdsfZLU4
Threatray 2'509 similar samples on MalwareBazaar
TLSH T1EDA4AE02BAD2C072D57121740D3AE735DAB8BD2128355A7BB3E61D5BFD30190A72A7B3
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4505/5/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter jstrosch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-01-20 14:11:41 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/82baa306-3c2d-4769-b906-c6638df41cc7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/354985/
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the Windows subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Creating a window
Running batch commands
Setting a keyboard event handler
Creating a file in the %AppData% subdirectories
Launching a process
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/61770/overview
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd.exe eventvwr.exe fingerprint greyware keylogger rat remcos shell32.dll
Link:
https://www.filescan.io/uploads/63ca9daf1c9cbf7d6250a7f9/reports/fea160fb-4cab-42be-9295-5239b045715c/overview
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:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2e5d2c8a-1972-4bd3-8e07-b4b00eb07325
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1155554
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates an autostart registry key pointing to binary in C:\Windows
Delayed program exit found
Drops executables to the windows directory (C:\Windows) and starts them
Found evasive API chain (may stop execution after checking mutex)
Installs a global keyboard hook
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
Sample is not signed and drops a device driver
Sigma detected: Remcos
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 788287 Sample: file.exe Startdate: 20/01/2023 Architecture: WINDOWS Score: 100 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for dropped file 2->46 48 Antivirus / Scanner detection for submitted sample 2->48 50 5 other signatures 2->50 9 file.exe 5 5 2->9         started        13 adobe.exe 2->13         started        15 adobe.exe 2->15         started        17 adobe.exe 2->17         started        process3 file4 34 C:\Windows\SysWOW64\adobe.sys\adobe.exe, PE32 9->34 dropped 36 C:\Windows\...\adobe.exe:Zone.Identifier, ASCII 9->36 dropped 38 C:\Users\user\AppData\Local\...\ipezlomq.vbs, data 9->38 dropped 54 Contains functionality to steal Chrome passwords or cookies 9->54 56 Creates an autostart registry key pointing to binary in C:\Windows 9->56 58 Sample is not signed and drops a device driver 9->58 60 2 other signatures 9->60 19 wscript.exe 1 9->19         started        signatures5 process6 process7 21 cmd.exe 1 19->21         started        signatures8 52 Drops executables to the windows directory (C:\Windows) and starts them 21->52 24 adobe.exe 3 330 21->24         started        29 conhost.exe 21->29         started        process9 dnsIp10 42 31.192.232.48, 2000, 2255, 49702 GLESYS-ASSE Russian Federation 24->42 40 C:\ProgramData\remcos\logs.dat, data 24->40 dropped 62 Antivirus detection for dropped file 24->62 64 Multi AV Scanner detection for dropped file 24->64 66 Machine Learning detection for dropped file 24->66 68 4 other signatures 24->68 31 svchost.exe 24->31         started        file11 signatures12 process13 signatures14 70 Found evasive API chain (may stop execution after checking mutex) 31->70 72 Contains functionality to steal Chrome passwords or cookies 31->72 74 Contains functionality to steal Firefox passwords or cookies 31->74 76 Delayed program exit found 31->76
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1ad7a11b90fe0a21efb62ed36e1e9b1de9071cd6e73a59caca933aa81ea54d94/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-01-20 13:57:08 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dll2cg4q7yfcd35wf3jw4hu3dxuqohgw445ftswksm5kqhvfjwka._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
083e029e90f71ad347e5e0ee5f1ce9fd9befc9c697c8d17c683d14b9a0be107b
RemcosRAT
0dcfa47c53b79f6a2f70408b595c051902066e293251b17d91e5ab91bf2c702f
RemcosRAT
8eeee12ec07cb66de78247ff89429970d6fddd4439813520ac1627350f42dfcc
RemcosRAT
93b8d379e6c8211d9c7dce9d7dc16987a824dea3dab8bbbc85235b0f04f4e7c8
RemcosRAT
d47915645f8fa712a296ae6435bac9f09508e26a0fae53956d15f628dab2b027
RemcosRAT
f7f8d1ebfed3afd13eb47392a7f502603ecb970a817c221682cd8f2a17ff2bb3
RemcosRAT
+ 2'499 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:adobefile persistence rat
Link:
https://tria.ge/reports/230120-q8p2dsga5w/
Behaviour
Modifies registry class
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
31.192.232.48:2000
31.192.232.48:2255
Unpacked files
SH256 hash:
1ad7a11b90fe0a21efb62ed36e1e9b1de9071cd6e73a59caca933aa81ea54d94
MD5 hash:
4de0ac1331956b693768351a594207f0
SHA1 hash:
096c05d5a18739c391e7cc57ee4c6b9458495b7c
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/2132b380-5938-4f84-bab7-03eaba31658f/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1ad7a11b90fe/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/1ad7a11b90fe0a21efb62ed36e1e9b1de9071cd6e73a59caca933aa81ea54d94

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:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Rule name:win_remcos_auto
Create hunting rule
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.

Web download

RemcosRAT

Executable exe 1ad7a11b90fe0a21efb62ed36e1e9b1de9071cd6e73a59caca933aa81ea54d94

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/354985/

Comments