MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d939f9d2a1a45d0dde7ee84561937d8a35f2e82dcb79f6ac48b8881a9f57be15. 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: 13


Intelligence 13 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d939f9d2a1a45d0dde7ee84561937d8a35f2e82dcb79f6ac48b8881a9f57be15
SHA3-384 hash: 4e26894286a619eb3a5971845e87f06e3cafa89bfb8715ca740122ffa6465e128e7db1f30e7550fc64f62fb95738428e
SHA1 hash: 35434ccbf860731901a6cc43badbc0f7caaeb9c8
MD5 hash: 9396a73ec3fbde8b721486482f262da0
humanhash: north-arizona-vegan-alabama
File name:New Order.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:496'128 bytes
First seen:2021-02-11 07:12:09 UTC
Last seen:Never
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:gmg6t07URr7v1R7O8ldT3NNR4mRwQAfvCaK:gn6myv1s8bT9NR4fHK
Threatray 1'540 similar samples on MalwareBazaar
TLSH 02B4234832ECE676D76E03F261756E825733313BA502CE2DD964950B277BBC8C722C66
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: slot0.kolsitegroups.com
Sending IP: 203.159.80.22
From: Numair M. Choudhry <office@kolsitegroups.com>
Reply-To: Numair M. Choudhry <lcatena@studdds.com>
Subject: Re: New Order
Attachment: New Order.rar (contains "New Order.exe")

RemcosRAT C2:
greenfieldsde.duckdns.org

Intelligence

File Origin
# of uploads :
1
# of downloads :
108
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
New Order.exe
Verdict:
Malicious activity
Analysis date:
2021-02-11 07:14:32 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4abd40ee-cbfe-472e-b128-27c7f101c6c0

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/116672/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42845.31011.9436.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Running batch commands
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
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/605387
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
Initial sample is a PE file and has a suspicious name
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
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 351730 Sample: New Order.exe Startdate: 11/02/2021 Architecture: WINDOWS Score: 100 68 Malicious sample detected (through community Yara rule) 2->68 70 Sigma detected: Scheduled temp file as task from temp location 2->70 72 Detected Remcos RAT 2->72 74 12 other signatures 2->74 11 New Order.exe 6 2->11         started        15 remcos.exe 4 2->15         started        17 remcos.exe 2->17         started        process3 file4 58 C:\Users\user\AppData\...\ZfaiUqrdkjrj.exe, PE32 11->58 dropped 60 C:\Users\user\AppData\Local\...\tmpF916.tmp, XML 11->60 dropped 62 C:\Users\user\AppData\...62ew Order.exe.log, ASCII 11->62 dropped 80 Injects a PE file into a foreign processes 11->80 19 New Order.exe 4 5 11->19         started        22 schtasks.exe 1 11->22         started        24 schtasks.exe 15->24         started        26 remcos.exe 15->26         started        28 schtasks.exe 17->28         started        30 remcos.exe 17->30         started        signatures5 process6 file7 54 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 19->54 dropped 56 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 19->56 dropped 32 wscript.exe 1 19->32         started        34 conhost.exe 22->34         started        36 conhost.exe 24->36         started        38 conhost.exe 28->38         started        process8 process9 40 cmd.exe 1 32->40         started        process10 42 remcos.exe 5 40->42         started        45 conhost.exe 40->45         started        signatures11 76 Machine Learning detection for dropped file 42->76 78 Injects a PE file into a foreign processes 42->78 47 remcos.exe 42->47         started        50 schtasks.exe 42->50         started        process12 dnsIp13 64 greenfieldsde.duckdns.org 97.82.212.250, 6553 CHARTER-20115US United States 47->64 66 192.168.2.1 unknown unknown 47->66 52 conhost.exe 50->52         started        process14
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d939f9d2a1a45d0dde7ee84561937d8a35f2e82dcb79f6ac48b8881a9f57be15/
Threat name:
ByteCode-MSIL.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2021-02-11 07:36:28 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3e47tuvburoq3xt65bcwde35ri27f2bnzn47nlcixcebvh2xxykq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
21691425c52cf7a77c0e3a65cc1c0c59cb026d5b76e78160ebb8a553f9bbe50c
RemcosRAT
3b1b352f3c4d0fe235b45d9db418e1e4155ab31265ee368ed646ac38071a2eda
RemcosRAT
4791861118e0be776fd14153e2feca7d25f5a91a6c32a997385f5ae272e3d7c8
RemcosRAT
4b8335250b1cfcb5fac9790261dd43f5efcbc187c68961ee5afd34662d0599ed
RemcosRAT
5b10f4a23880b51923a0df3e9e3c37f40eb0d3cc93de7b463da62f936a501385
RemcosRAT
61d9f4cbc76b7889d7d17d262b63c0fd2ee40642653063b1eb6ab84397f8c57b
RemcosRAT
82027bdaf86e2d0da1c45ede5efd820a1cbaace1b1b8f7675b8115d82db75f26
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d34e588c8bef9cef39708c52f7f372bcd4b5fc39e4eaf0b9193aa586a10d7cc2
RemcosRAT
dfd3c33bf7be405cea03a045f3df2d9ff35f04c7da918eb916b6f224a58eea1f
RemcosRAT
e26c95b32b64e3f7b5d72d52be2fd7cb52c7a2c1df25f5337a783a1735f806ad
RemcosRAT
+ 1'530 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210211-b3wp322psn/
Behaviour
Creates scheduled task(s)
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:
greenfieldsde.duckdns.org:6553
Unpacked files
SH256 hash:
b700aaec45e7cd5dfe00dba34ab36af2710eb2a84e50bb818f24ef90039e06e4
MD5 hash:
d9dbc2010f3ae1c2fc1aaf227009a484
SHA1 hash:
e6ac4eba61f790a42c40d53488ea7e22151ff13e
Link:
https://www.unpac.me/results/d6166851-ef45-4937-b9ef-e5a2ad3d7225/
SH256 hash:
3e0ea31998be9ca41e253526f346439c8be16c63c7f56c1aaf00afd6ce971ae3
MD5 hash:
543db2945169ebcd48d42fed0f256d47
SHA1 hash:
d975b6604d4c616ef463b595964672e4d9445491
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/d6166851-ef45-4937-b9ef-e5a2ad3d7225/
Parent samples :
d939f9d2a1a45d0dde7ee84561937d8a35f2e82dcb79f6ac48b8881a9f57be15
c07a8d3dd242ba97168fbb468e9034254b9c853a2e1ec2f6de9f82d387dd1911
SH256 hash:
2ec41720b412f91f91daaefea38007449491b2c016238aa8f23b6866c89bc788
MD5 hash:
987ce346069cf47535e5ac57265c7228
SHA1 hash:
d0085325ed78fcac6d1f605753237abd1c40db22
Link:
https://www.unpac.me/results/d6166851-ef45-4937-b9ef-e5a2ad3d7225/
SH256 hash:
d939f9d2a1a45d0dde7ee84561937d8a35f2e82dcb79f6ac48b8881a9f57be15
MD5 hash:
9396a73ec3fbde8b721486482f262da0
SHA1 hash:
35434ccbf860731901a6cc43badbc0f7caaeb9c8
Link:
https://www.unpac.me/results/d6166851-ef45-4937-b9ef-e5a2ad3d7225/
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/d939f9d2a1a45d0dde7ee84561937d8a35f2e82dcb79f6ac48b8881a9f57be15

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

rar 2033c189a8bbb5af887e1b92a5188feddf8e32b74bfdd0e3d9c5429f4555df8e

RemcosRAT

Executable exe d939f9d2a1a45d0dde7ee84561937d8a35f2e82dcb79f6ac48b8881a9f57be15

(this sample)

  
Dropped by
MD5 c59d883c302a7e1c16b44f486819f4ef
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/116672/
  
Dropped by
SHA256 2033c189a8bbb5af887e1b92a5188feddf8e32b74bfdd0e3d9c5429f4555df8e

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