MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 93e3956f268d38726acd19958a181d02feaea3e166b7e7d24d7a0c908141a4b2. 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: 11


Intelligence 11 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 93e3956f268d38726acd19958a181d02feaea3e166b7e7d24d7a0c908141a4b2
SHA3-384 hash: 9212f4149f156422bba9f33df7ca0960e2a345b292fa857fe30060317879ab075b2da46c30463ac2146955079068fa48
SHA1 hash: 0b841a04228d0774559a70051ce45ecab747ec77
MD5 hash: 25c71e37a9cc1bae4bc5227de8c3c17a
humanhash: johnny-oranges-winner-louisiana
File name:25c71e37a9cc1bae4bc5227de8c3c17a.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'347'072 bytes
First seen:2021-04-23 06:30:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:6QhcKDUXrZgbkJuITqdRkcenFX86KzBQKxw6THA:6QhcKwXrZzJuITURk3B8N966
TLSH 9F559D9C3250B1EFC86BC972DEA81D64EA60747B931B9203905316EDDE0DA9BCF145F2
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
173
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
25c71e37a9cc1bae4bc5227de8c3c17a.exe
Verdict:
Malicious activity
Analysis date:
2021-04-23 06:33:38 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/1ef52af3-2f8e-4178-9e5a-3ed2733b63dc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/143804/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
Launching a process
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/694643
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
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
Detected unpacking (creates a PE file in dynamic memory)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 396248 Sample: X71l3ZnAV2.exe Startdate: 23/04/2021 Architecture: WINDOWS Score: 100 54 fieldsdegreenf.duckdns.org 2->54 56 aaeeerbbbeee.duckdns.org 2->56 68 Found malware configuration 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 Multi AV Scanner detection for submitted file 2->72 74 8 other signatures 2->74 14 X71l3ZnAV2.exe 3 2->14         started        18 remcos.exe 2 2->18         started        signatures3 process4 file5 52 C:\Users\user\AppData\...\X71l3ZnAV2.exe.log, ASCII 14->52 dropped 92 Contains functionalty to change the wallpaper 14->92 94 Contains functionality to steal Chrome passwords or cookies 14->94 96 Contains functionality to inject code into remote processes 14->96 100 2 other signatures 14->100 20 X71l3ZnAV2.exe 4 5 14->20         started        98 Injects a PE file into a foreign processes 18->98 23 remcos.exe 18->23         started        signatures6 process7 file8 46 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 20->46 dropped 48 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 20->48 dropped 25 wscript.exe 1 20->25         started        process9 process10 27 cmd.exe 1 25->27         started        process11 29 remcos.exe 3 27->29         started        33 conhost.exe 27->33         started        file12 50 C:\Users\user\AppData\...\remcos.exe.log, ASCII 29->50 dropped 84 Multi AV Scanner detection for dropped file 29->84 86 Detected unpacking (creates a PE file in dynamic memory) 29->86 88 Contains functionalty to change the wallpaper 29->88 90 5 other signatures 29->90 35 remcos.exe 4 3 29->35         started        signatures13 process14 dnsIp15 58 fieldsdegreenf.duckdns.org 45.144.225.94, 49719, 49720, 49721 DEDIPATH-LLCUS Netherlands 35->58 60 aaeeerbbbeee.duckdns.org 35->60 76 Writes to foreign memory regions 35->76 78 Allocates memory in foreign processes 35->78 80 Installs a global keyboard hook 35->80 82 Injects a PE file into a foreign processes 35->82 39 svchost.exe 35->39         started        signatures16 process17 process18 41 iexplore.exe 39->41         started        process19 43 iexplore.exe 41->43         started        dnsIp20 62 aaeeerbbbeee.duckdns.org 43->62 64 github.com 140.82.121.3, 443, 49730, 49731 GITHUBUS United States 43->64 66 3 other IPs or domains 43->66
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/93e3956f268d38726acd19958a181d02feaea3e166b7e7d24d7a0c908141a4b2/
Threat name:
ByteCode-MSIL.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-04-23 01:50:17 UTC
AV detection:
16 of 47 (34.04%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sprzk3zgru4he2wndgkyuga5al7k5i7bm236pusnpigjbakbusza._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210423-fs68hdwh9x/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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:
fieldsdegreenf.duckdns.org:6553
aaeeerbbbeee.duckdns.org:6553
Unpacked files
SH256 hash:
74b2935b9dfe4ba397fd0507ae3c36abb77193041f2e7c43c55dc4e7b33de61c
MD5 hash:
b5c218f30fecc9cb8513ff6a46737b01
SHA1 hash:
f0416867c2b114789620b318051f1fa390b07eae
Link:
https://www.unpac.me/results/c674824f-0e06-4290-9eee-ddfbc5ba9e98/
SH256 hash:
02650bdf290724edd38abc7e303ff74ca1fc7fba26f3f0dcead22cdce5b9b3fa
MD5 hash:
9f7ef650ee32895e313edc085fbc29f9
SHA1 hash:
bcde3f8d90c9b0d3ad79785f77a089003260fedc
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/c674824f-0e06-4290-9eee-ddfbc5ba9e98/
Parent samples :
974b3b9247ead5b640b495a96efba657ebee885fd25374e294ce55d7472ee402
93e3956f268d38726acd19958a181d02feaea3e166b7e7d24d7a0c908141a4b2
af0249150bee4fec74c124f89019cd260c9aacd7b7a7715192b5097f1948eb82
02650bdf290724edd38abc7e303ff74ca1fc7fba26f3f0dcead22cdce5b9b3fa
SH256 hash:
ef606cd3e6fa46d6cc0ef59c0cd7ddfb4d4fd957c9de43fb436c0d9cd264e834
MD5 hash:
08ff0ccb9a416264c936cf11a67d856d
SHA1 hash:
32759f7f7fce50d94956e4534b50c4daef4ed217
Link:
https://www.unpac.me/results/c674824f-0e06-4290-9eee-ddfbc5ba9e98/
SH256 hash:
93e3956f268d38726acd19958a181d02feaea3e166b7e7d24d7a0c908141a4b2
MD5 hash:
25c71e37a9cc1bae4bc5227de8c3c17a
SHA1 hash:
0b841a04228d0774559a70051ce45ecab747ec77
Link:
https://www.unpac.me/results/c674824f-0e06-4290-9eee-ddfbc5ba9e98/
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/93e3956f268d38726acd19958a181d02feaea3e166b7e7d24d7a0c908141a4b2

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:ach_RemcosRAT
Create hunting rule
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule

File information

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

Web download

RemcosRAT

Executable exe 93e3956f268d38726acd19958a181d02feaea3e166b7e7d24d7a0c908141a4b2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1145250/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/143804/

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