MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dbca71e07993a71f255cbe929c39c43072e2d4e0929134e76385dd741169374d. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dbca71e07993a71f255cbe929c39c43072e2d4e0929134e76385dd741169374d
SHA3-384 hash: 873d2f1bc9d8d71e02296cdd09b0b636222fafd8d777ae94cbfb064bc0360b6634b6fae32f43edda1944f8eafee013f9
SHA1 hash: a173f4601fbeb576e8548a23203c09201c4f90ac
MD5 hash: 6d1fa6f136309e9c01246f274e5dff28
humanhash: spring-alpha-lactose-fourteen
File name:AWB 686553534 Lô hàng ,pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'092'096 bytes
First seen:2020-12-21 07:22:35 UTC
Last seen:2020-12-21 08:55:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:E0SqXlvKDxD7l4d033jxrQSM7qD3OL7yanw/auln1BOeA3N+QR8Y8zMgBhKblDxm:LNcDxDsCjxrFvqLOXaubBk+I8ZN
Threatray 1'880 similar samples on MalwareBazaar
TLSH F435CE303AEA901DF273AFB55BE47196DA6FF6733B07E45E1081038A4613E41DE92639
Reporter abuse_ch
Tags:DHL exe geo nVpn RAT RemcosRAT VNM


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: slot0.kipenann.com
Sending IP: 45.85.90.240
From: DHL Express <office@kipenann.com>
Subject: Hóa đơn thương mại & BL
Attachment: AWB 686553534 Lô hàng ,pdf.iso (contains "AWB 686553534 Lô hàng ,pdf.exe")

RemcosRAT C2:
graceman2021.ddns.net:1717

Pointing to nVpn:

% Information related to '185.244.30.0 - 185.244.30.255'

% Abuse contact for '185.244.30.0 - 185.244.30.255' is 'abuse@privacyfirst.sh'

inetnum: 185.244.30.0 - 185.244.30.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-HU
country: HU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2019-10-29T14:10:27Z
last-modified: 2020-10-07T21:39:48Z
source: RIPE

Intelligence

File Origin
# of uploads :
2
# of downloads :
136
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
AWB 686553534 Lô hàng ,pdf.exe
Verdict:
Malicious activity
Analysis date:
2020-12-21 07:24:12 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/6e8d9087-d28a-4075-ac1f-5d8468f2be17

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/108652/
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Generic.tc.13546.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
Creating a process from a recently created file
Result
Gathering data
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/567189
Signature
.NET source code contains very large strings
Binary contains a suspicious time stamp
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
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)
Multi AV Scanner detection for dropped 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 dnsIp2 2 Behavior Graph ID: 332673 Sample: AWB 686553534 L#U00f4 h#U00... Startdate: 21/12/2020 Architecture: WINDOWS Score: 100 63 graceman2021.ddns.net 2->63 69 Malicious sample detected (through community Yara rule) 2->69 71 Multi AV Scanner detection for dropped file 2->71 73 Sigma detected: Scheduled temp file as task from temp location 2->73 75 15 other signatures 2->75 12 AWB 686553534 L#U00f4 h#U00e0ng ,pdf.exe 7 2->12         started        16 remcos.exe 2->16         started        18 remcos.exe 3 2->18         started        signatures3 process4 file5 53 C:\Users\user\AppData\...\tNdFIUGGIwTx.exe, PE32 12->53 dropped 55 C:\Users\...\tNdFIUGGIwTx.exe:Zone.Identifier, ASCII 12->55 dropped 57 C:\Users\user\AppData\Local\...\tmpA3EF.tmp, XML 12->57 dropped 59 AWB 686553534 L#U0...00e0ng ,pdf.exe.log, ASCII 12->59 dropped 85 Injects a PE file into a foreign processes 12->85 20 AWB 686553534 L#U00f4 h#U00e0ng ,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        61 C:\Users\user\AppData\...\remcos.exe.log, ASCII 18->61 dropped signatures6 process7 file8 49 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 20->49 dropped 51 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 20->51 dropped 29 wscript.exe 1 20->29         started        31 conhost.exe 23->31         started        33 conhost.exe 25->33         started        process9 process10 35 cmd.exe 1 29->35         started        process11 37 remcos.exe 4 35->37         started        40 conhost.exe 35->40         started        signatures12 77 Multi AV Scanner detection for dropped file 37->77 79 Machine Learning detection for dropped file 37->79 81 Contains functionality to steal Chrome passwords or cookies 37->81 83 3 other signatures 37->83 42 remcos.exe 37->42         started        45 schtasks.exe 37->45         started        process13 dnsIp14 65 graceman2021.ddns.net 185.244.30.22, 1717, 49728, 49731 DAVID_CRAIGGG Netherlands 42->65 67 192.168.2.1 unknown unknown 42->67 47 conhost.exe 45->47         started        process15
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/dbca71e07993a71f255cbe929c39c43072e2d4e0929134e76385dd741169374d/
Threat name:
ByteCode-MSIL.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2020-12-21 07:23:08 UTC
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3pfhdydzsotr6jk4x2jjyooegbzofvhaskitjz3dqxoxieljg5gq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
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RemcosRAT
21691425c52cf7a77c0e3a65cc1c0c59cb026d5b76e78160ebb8a553f9bbe50c
RemcosRAT
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736bd7b09aa1e987edac64868cc8e5db0d86e709652e0588e2023d052f3def8f
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82027bdaf86e2d0da1c45ede5efd820a1cbaace1b1b8f7675b8115d82db75f26
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85eb2c7d5206686595f009a4e5a57a5743f736fa457454477377bea7368a2ab8
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9930543939f97818319ed031530d9e084994331aa4b06a304faeb321bbcc63db
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d34e588c8bef9cef39708c52f7f372bcd4b5fc39e4eaf0b9193aa586a10d7cc2
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e26c95b32b64e3f7b5d72d52be2fd7cb52c7a2c1df25f5337a783a1735f806ad
RemcosRAT
+ 1'870 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/201221-gkvc8151e2/
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:
graceman2021.ddns.net:1717
Unpacked files
SH256 hash:
f845d338d0f33a8fc3dfd52e5b6f436e5d8185c751b061876c347a05752da9e9
MD5 hash:
b726d36601449a82c945463ac500f612
SHA1 hash:
c27591a7da89225f1197b7f225e3bff6c3c634e2
Link:
https://www.unpac.me/results/c31aa42f-ee6a-4c1f-bf39-d7d316ee071d/
SH256 hash:
3ca9cf478845d74c61a836a02908c7d26d5e0b2fb8d03f92bfe5ed4a8865527a
MD5 hash:
ccaf4c52861605afe12d4fb1f927ef32
SHA1 hash:
c8c52901e58187e7597c984fb893410e613d571b
Link:
https://www.unpac.me/results/c31aa42f-ee6a-4c1f-bf39-d7d316ee071d/
SH256 hash:
df95c34f74405775832a9e5aa218a9a559c7bd23d650abb0916cf6d1b86e7b89
MD5 hash:
1b5e823922de64f29e738a14e5fc0105
SHA1 hash:
f3214d27f06c890df7db065d223fc873a087517a
Link:
https://www.unpac.me/results/c31aa42f-ee6a-4c1f-bf39-d7d316ee071d/
SH256 hash:
42055d363a328c89f1745dbec4b20d31036e9f20ec34582717c4ca66ffed21de
MD5 hash:
b83e600f910981ac072d2b3320b0b7c1
SHA1 hash:
1022627f793420f82affeaf5276946ea86061878
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/c31aa42f-ee6a-4c1f-bf39-d7d316ee071d/
SH256 hash:
dbca71e07993a71f255cbe929c39c43072e2d4e0929134e76385dd741169374d
MD5 hash:
6d1fa6f136309e9c01246f274e5dff28
SHA1 hash:
a173f4601fbeb576e8548a23203c09201c4f90ac
Link:
https://www.unpac.me/results/c31aa42f-ee6a-4c1f-bf39-d7d316ee071d/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/dbca71e07993a71f255cbe929c39c43072e2d4e0929134e76385dd741169374d

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 bf31e41a87d0538b1403acf992835df23e6febadaa147ba5ba4bd78e90fa80bc

RemcosRAT

Executable exe dbca71e07993a71f255cbe929c39c43072e2d4e0929134e76385dd741169374d

(this sample)

  
Dropped by
MD5 410da89cc49de4cd57faaa5140454122
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 bf31e41a87d0538b1403acf992835df23e6febadaa147ba5ba4bd78e90fa80bc
Cape
Cape
https://www.capesandbox.com/analysis/108652/

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