MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b1b352f3c4d0fe235b45d9db418e1e4155ab31265ee368ed646ac38071a2eda. 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: 10


Intelligence 10 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3b1b352f3c4d0fe235b45d9db418e1e4155ab31265ee368ed646ac38071a2eda
SHA3-384 hash: 75f1579869eb01db54b5ae0bfd88aa8d1a3792b4593b8d1535a18f40b53b563346c40e14128e12667e9ed11342c31460
SHA1 hash: 25602dcef8fb46b22e954f225483f3e3617a0261
MD5 hash: 1a5c59aeb8ec99b73bc89056e63805c0
humanhash: oranges-uranus-texas-victor
File name:DHL AWD 3374687886,pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:924'160 bytes
First seen:2021-01-15 06:15:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'449 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:2HsJlkbMylWnvSx/KG3EaXZK2bq5RILVO1Y+LG9hSmfE:+eCQZvq939ZM5RIqYTm6
Threatray 1'491 similar samples on MalwareBazaar
TLSH 90157D419B41EF14E3BC13BF64040050A7F5DA26F7E8EB69EDD5B0EA6B92E2550FC182
Reporter abuse_ch
Tags:DHL exe geo RAT RemcosRAT VNM


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: mail4.brandsloveki.com
Sending IP: 164.90.147.2
From: DHL Express<delivery@dhl.com>
Subject: RV: Thông báo Vận chuyển DHL Express
Attachment: DHL AWD 3374687886,pdf.iso (contains "DHL AWD 3374687886,pdf.exe")

RemcosRAT C2:
favour2021.ddns.net:1990 (185.19.85.136)

Intelligence

File Origin
# of uploads :
1
# of downloads :
110
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL AWD 3374687886,pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-01-15 06:20:01 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/1c38e777-9e38-445b-9b2d-3bfb42beed4d

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/112136/
Detection(s):
SecuriteInfo.com.Artemis1A5C59AEB8EC.7098.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
Running batch commands
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/582322
Signature
Contains functionality to capture and log keystrokes
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
Detected Remcos RAT
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 340194 Sample: DHL AWD 3374687886,pdf.exe Startdate: 15/01/2021 Architecture: WINDOWS Score: 100 74 favour2021.ddns.net 2->74 88 Malicious sample detected (through community Yara rule) 2->88 90 Sigma detected: Scheduled temp file as task from temp location 2->90 92 Detected Remcos RAT 2->92 94 13 other signatures 2->94 12 DHL AWD 3374687886,pdf.exe 7 2->12         started        16 remcos.exe 4 2->16         started        18 remcos.exe 2->18         started        signatures3 process4 file5 64 C:\Users\user\AppData\Roaming\IdXhNheuy.exe, PE32 12->64 dropped 66 C:\Users\...\IdXhNheuy.exe:Zone.Identifier, ASCII 12->66 dropped 68 C:\Users\user\AppData\Local\...\tmp32D5.tmp, XML 12->68 dropped 70 C:\Users\...\DHL AWD 3374687886,pdf.exe.log, ASCII 12->70 dropped 96 Injects a PE file into a foreign processes 12->96 20 DHL AWD 3374687886,pdf.exe 4 5 12->20         started        23 schtasks.exe 1 12->23         started        25 schtasks.exe 16->25         started        27 remcos.exe 16->27         started        29 remcos.exe 16->29         started        31 schtasks.exe 18->31         started        33 remcos.exe 18->33         started        35 remcos.exe 18->35         started        signatures6 process7 file8 60 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 20->60 dropped 62 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 20->62 dropped 37 wscript.exe 1 20->37         started        39 conhost.exe 23->39         started        41 conhost.exe 25->41         started        43 conhost.exe 31->43         started        process9 process10 45 cmd.exe 1 37->45         started        process11 47 remcos.exe 5 45->47         started        51 conhost.exe 45->51         started        file12 72 C:\Users\user\AppData\...\remcos.exe.log, ASCII 47->72 dropped 80 Contains functionalty to change the wallpaper 47->80 82 Machine Learning detection for dropped file 47->82 84 Contains functionality to steal Chrome passwords or cookies 47->84 86 2 other signatures 47->86 53 remcos.exe 47->53         started        56 schtasks.exe 1 47->56         started        signatures13 process14 dnsIp15 76 favour2021.ddns.net 185.19.85.136, 1990, 49719, 49723 DATAWIRE-ASCH Switzerland 53->76 78 192.168.2.1 unknown unknown 53->78 58 conhost.exe 56->58         started        process16
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3b1b352f3c4d0fe235b45d9db418e1e4155ab31265ee368ed646ac38071a2eda/
Threat name:
Win32.Backdoor.Rescoms
Create hunting rule
Status:
Malicious
First seen:
2021-01-15 00:43:34 UTC
AV detection:
4 of 46 (8.70%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hmntklz4juh6ennulwo3ighb4qkvvmysmxxdndwwi2wdqby2f3na._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
18beca395ea8cfba85e8fb26a3adc366bf7c047088c2fe16b4ed587cecd6e57f
RemcosRAT
1a1924da9d272ea46f8a0a62d7e2ecf01746e9a7621c8b1c36950788c3a3bd8c
RemcosRAT
2ac56457e5dfd887f318ab16bbc8fa9711095b8cb4cae99f5a34358c9a8502f0
RemcosRAT
71d7c76b658053e46f6dff1e25fc4ed32bdbe2afd879ce510ce79d327c34bc31
RemcosRAT
a362c422dd9a2c24a7cc96dc14244742d24274b78da4b0a27157ac9e7c38b04a
RemcosRAT
a7154f13f8a8a66f47afafe4099e6e760aef60af8eb8d66de0d8ee83cfe1ef8b
RemcosRAT
b35741dc7b3748ad255394b04aa0b6f2a25fda177ba6ad504a2b802f555c33b2
RemcosRAT
b530ffc8af72cb51943f2fb8f38bc778c4544f57b61de593960dd4a97327ca64
RemcosRAT
be83ef519ed5e3e444b10b4dd8a77515cda4993c6ce69f565405c9c2bd0901bc
RemcosRAT
c1db0bc7089675799a66c321a0401a402b94e0d455037b0cbd76e54188de43c8
RemcosRAT
+ 1'481 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210115-3qpr8xbwr6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
favour2021.ddns.net:1990
Unpacked files
SH256 hash:
296620e9308a1069ca98d27c426f25f5c1f87d9240bb371c657571034b0261b5
MD5 hash:
4cf24d41a7882216740280e3294cb853
SHA1 hash:
6bcb31d3dc0a7d71da1067a628168664202769a4
Link:
https://www.unpac.me/results/3985dbf7-779a-425b-a771-d02e49b136f0/
SH256 hash:
3b1b352f3c4d0fe235b45d9db418e1e4155ab31265ee368ed646ac38071a2eda
MD5 hash:
1a5c59aeb8ec99b73bc89056e63805c0
SHA1 hash:
25602dcef8fb46b22e954f225483f3e3617a0261
Link:
https://www.unpac.me/results/3985dbf7-779a-425b-a771-d02e49b136f0/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Backdoor
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3b1b352f3c4d0fe235b45d9db418e1e4155ab31265ee368ed646ac38071a2eda

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:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Malspam

RemcosRAT

iso ad8e9e9876da93bb8713c9c5d150214f24b25c1aa3e07a6807421ce7f4d37b15

RemcosRAT

Executable exe 3b1b352f3c4d0fe235b45d9db418e1e4155ab31265ee368ed646ac38071a2eda

(this sample)

  
Dropped by
MD5 c0baaa69495c5d68d4ba5f1f6d88e0d6
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/112136/
  
Dropped by
SHA256 ad8e9e9876da93bb8713c9c5d150214f24b25c1aa3e07a6807421ce7f4d37b15

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