MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7c7f99d2b695777b5809dcee0723304b77a06ea8c72ec8a9e0967e4d8584d585. 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: 7c7f99d2b695777b5809dcee0723304b77a06ea8c72ec8a9e0967e4d8584d585
SHA3-384 hash: 57cbf088da88435ab225a6a069b0f135c0cd3a513346d3c13262c0e606db37db5049ffa5b15a9071e53a95f724f631eb
SHA1 hash: c204a09386374da5924ace3f928e33d89f54d4d2
MD5 hash: 01856ddc0973cc04929480b93139ffa5
humanhash: island-eighteen-network-berlin
File name:DHL 3374687886,PDF.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:996'352 bytes
First seen:2021-01-13 07:40:53 UTC
Last seen:2021-01-13 14:11:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:7Zu3dC1rze/cLLNL+g0FpXfnicUOpTfL:7iUze/c3J+FpPdTR
Threatray 1'339 similar samples on MalwareBazaar
TLSH 4025F840BBD85700F3BD27BC693040615BF9BB95A7B8F31CF86C506A5BA2D5084BE762
Reporter abuse_ch
Tags:DHL exe geo RAT RemcosRAT VNM


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: mail2.brandsloveki.com
Sending IP: 164.90.147.2
From: DHL Express<delivery@dhl.com>
Subject: RV: Thông báo Vận chuyển DHL Express
Attachment: DHL 3374687886,PDF.iso (contains "DHL 3374687886,PDF.exe")

Intelligence

File Origin
# of uploads :
3
# of downloads :
213
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL 3374687886,PDF.exe
Verdict:
Malicious activity
Analysis date:
2021-01-13 09:21:08 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/fd8daab1-583a-44a6-8301-c5bbc3fc2622

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/111745/
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Fareit.dh.28552.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a UDP request
Creating a window
Launching a process
Creating a process with a hidden window
Running batch commands
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/579906
Signature
.NET source code contains potential unpacker
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
Detected Remcos RAT
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
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 signatures2 2 Behavior Graph ID: 338999 Sample: DHL 3374687886,PDF.exe Startdate: 13/01/2021 Architecture: WINDOWS Score: 100 73 Malicious sample detected (through community Yara rule) 2->73 75 Multi AV Scanner detection for dropped file 2->75 77 Sigma detected: Scheduled temp file as task from temp location 2->77 79 15 other signatures 2->79 11 DHL 3374687886,PDF.exe 7 2->11         started        14 remcos.exe 4 2->14         started        16 remcos.exe 2->16         started        process3 file4 63 C:\Users\user\AppData\...\hvEYWBAfCvEku.exe, PE32 11->63 dropped 65 C:\...\hvEYWBAfCvEku.exe:Zone.Identifier, ASCII 11->65 dropped 67 C:\Users\user\AppData\Local\...\tmp4881.tmp, XML 11->67 dropped 69 C:\Users\user\...\DHL 3374687886,PDF.exe.log, ASCII 11->69 dropped 18 DHL 3374687886,PDF.exe 4 5 11->18         started        21 schtasks.exe 1 11->21         started        23 schtasks.exe 14->23         started        25 remcos.exe 14->25         started        27 remcos.exe 14->27         started        29 schtasks.exe 16->29         started        31 remcos.exe 16->31         started        process5 file6 59 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 18->59 dropped 61 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 18->61 dropped 33 wscript.exe 1 18->33         started        35 conhost.exe 21->35         started        37 conhost.exe 23->37         started        39 conhost.exe 29->39         started        process7 process8 41 cmd.exe 1 33->41         started        process9 43 remcos.exe 5 41->43         started        46 conhost.exe 41->46         started        signatures10 81 Multi AV Scanner detection for dropped file 43->81 83 Machine Learning detection for dropped file 43->83 48 remcos.exe 43->48         started        51 schtasks.exe 43->51         started        53 remcos.exe 43->53         started        55 2 other processes 43->55 process11 dnsIp12 71 favour2021.ddns.net 185.19.85.136, 1990, 49716 DATAWIRE-ASCH Switzerland 48->71 57 conhost.exe 51->57         started        process13
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7c7f99d2b695777b5809dcee0723304b77a06ea8c72ec8a9e0967e4d8584d585/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pr7ztuvwsv3xwwaj3txaoizqjn32a3viy4xmrkpasz7e3bme2wcq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0b69258626ece584131b49ae0aa317153d7b4ae602e7f936be7f462905cd9d8a
RemcosRAT
11b16ba733f2f4f10ac58021eecaf5668551a73e2a1acfae99745c50bfccbb44
RemcosRAT
21691425c52cf7a77c0e3a65cc1c0c59cb026d5b76e78160ebb8a553f9bbe50c
RemcosRAT
4791861118e0be776fd14153e2feca7d25f5a91a6c32a997385f5ae272e3d7c8
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4a94b062dbb9df940520146d100df5b019795d0f508d7ba89d24eb18725e1608
RemcosRAT
61d9f4cbc76b7889d7d17d262b63c0fd2ee40642653063b1eb6ab84397f8c57b
RemcosRAT
82027bdaf86e2d0da1c45ede5efd820a1cbaace1b1b8f7675b8115d82db75f26
RemcosRAT
9930543939f97818319ed031530d9e084994331aa4b06a304faeb321bbcc63db
RemcosRAT
d34e588c8bef9cef39708c52f7f372bcd4b5fc39e4eaf0b9193aa586a10d7cc2
RemcosRAT
e26c95b32b64e3f7b5d72d52be2fd7cb52c7a2c1df25f5337a783a1735f806ad
RemcosRAT
+ 1'329 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210113-5q9xpj2z4j/
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:
7c7f99d2b695777b5809dcee0723304b77a06ea8c72ec8a9e0967e4d8584d585
MD5 hash:
01856ddc0973cc04929480b93139ffa5
SHA1 hash:
c204a09386374da5924ace3f928e33d89f54d4d2
Link:
https://www.unpac.me/results/c16c2279-3496-4dc0-931b-52414c1462af/
SH256 hash:
296620e9308a1069ca98d27c426f25f5c1f87d9240bb371c657571034b0261b5
MD5 hash:
4cf24d41a7882216740280e3294cb853
SHA1 hash:
6bcb31d3dc0a7d71da1067a628168664202769a4
Link:
https://www.unpac.me/results/c16c2279-3496-4dc0-931b-52414c1462af/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/7c7f99d2b695777b5809dcee0723304b77a06ea8c72ec8a9e0967e4d8584d585

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 37343cd0974d2752a0b4d31d75a6e9e3f6bf7a0b9dde0c340775fb45cd590b6d

RemcosRAT

Executable exe 7c7f99d2b695777b5809dcee0723304b77a06ea8c72ec8a9e0967e4d8584d585

(this sample)

  
Dropped by
MD5 5489e41fdeb98ead5f1e327fadabe5dd
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 37343cd0974d2752a0b4d31d75a6e9e3f6bf7a0b9dde0c340775fb45cd590b6d
Cape
Cape
https://www.capesandbox.com/analysis/111745/

Comments