MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9fad68bbaba3bcd69e3b8100eb5c035ea2caf59e0f9115e36667a62b2dce84bb. 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 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9fad68bbaba3bcd69e3b8100eb5c035ea2caf59e0f9115e36667a62b2dce84bb
SHA3-384 hash: 81d19787a41dc636192dfaba3b112986d9661c94bf42ffbf80a2f5ea906e11ba9f2a4019204b75e07ea5fc0e1bec2e76
SHA1 hash: b15f778e61db3d629cd222fc2e144e4ae9040f14
MD5 hash: 80c06791542349507d8d49ee9177bee3
humanhash: march-solar-johnny-friend
File name:Invoice #756-77988-23989646.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:448'512 bytes
First seen:2021-01-12 18:04:52 UTC
Last seen:2021-01-12 19:48:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:fAokNO4jfCbN89EzADFPcNU8qgVH4wJCXy6DkWNN:YrNj6uzPEU8qgZ4wJCiw9N
Threatray 59 similar samples on MalwareBazaar
TLSH 56941946BBC6C6E0C490B8B7A3E851BD27B2E2DF060092EA530C47F4D9562C67D4E6D7
Reporter abuse_ch
Tags:exe RemcosRAT


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: www317b.sakura.ne.jp
Sending IP: 219.94.155.147
From: chatani@kyoya.co.jp
Reply-To: aggreko@emirates.net.ae
Subject: Fwd:Re:Re:Re: Notice on the above Invoice #756-77988-23989646
Attachment: Invoice 756-77988-23989646.rar (contains "Invoice #756-77988-23989646.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
126
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice #756-77988-23989646.exe
Verdict:
Malicious activity
Analysis date:
2021-01-12 18:24:30 UTC
Tags:
rat remcos trojan keylogger
Link:
https://app.any.run/tasks/5d0fa282-7e88-45ee-807d-99bf19a49457

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/111582/
Detection(s):
SecuriteInfo.com.Variant.Razy.826886.12234.1289.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending a UDP request
Creating a file
Launching the default Windows debugger (dwwin.exe)
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/579395
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
Creates an undocumented autostart registry key
Detected Remcos RAT
Executable has a suspicious name (potential lure to open the executable)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 338743 Sample: Invoice #756-77988-23989646.exe Startdate: 12/01/2021 Architecture: WINDOWS Score: 100 39 1.remcosagent.com 2->39 47 Malicious sample detected (through community Yara rule) 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 Detected Remcos RAT 2->51 53 9 other signatures 2->53 8 google.exe 3 2->8         started        12 Invoice #756-77988-23989646.exe 3 2->12         started        14 google.exe 2->14         started        16 google.exe 2->16         started        signatures3 process4 file5 35 C:\Users\user\AppData\...\google.exe.log, ASCII 8->35 dropped 57 Multi AV Scanner detection for dropped file 8->57 59 Contains functionalty to change the wallpaper 8->59 61 Contains functionality to steal Chrome passwords or cookies 8->61 67 2 other signatures 8->67 18 google.exe 2 3 8->18         started        37 C:\...\Invoice #756-77988-23989646.exe.log, ASCII 12->37 dropped 63 Hides that the sample has been downloaded from the Internet (zone.identifier) 12->63 65 Injects a PE file into a foreign processes 12->65 22 Invoice #756-77988-23989646.exe 6 4 12->22         started        25 BackgroundTransferHost.exe 19 12->25         started        signatures6 process7 dnsIp8 41 23.105.131.188, 10001, 49768, 49769 LEASEWEB-USA-NYC-11US United States 18->41 43 1.remcosagent.com 194.5.97.173, 10001, 49727, 49729 DANILENKODE Netherlands 18->43 45 192.168.2.1 unknown unknown 18->45 29 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 18->29 dropped 31 C:\Users\user\AppData\Roaming\google.exe, PE32 22->31 dropped 33 C:\Users\user\...\google.exe:Zone.Identifier, ASCII 22->33 dropped 55 Creates an undocumented autostart registry key 22->55 27 wscript.exe 22->27         started        file9 signatures10 process11
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/9fad68bbaba3bcd69e3b8100eb5c035ea2caf59e0f9115e36667a62b2dce84bb/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-01-12 12:33:13 UTC
AV detection:
11 of 44 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=t6wwro5luo6nnhr3qeaowxadl2rmv5m6b6irly3gm6tcwlooqs5q._file
Verdict:
unknown
Similar samples:
2107a31669bfe0b3bbb80e1f2853015aff987ad14aa23e7583cedeefe49aa775
RemcosRAT
3d39fc826f6ed0115155842080406ffc82f930c5daae8ef710d3c30009fd0106
RemcosRAT
3eead5a24b3bec7174dfa8bcb1789abd9f8c9755ac2fac479a33974d32277af0
RemcosRAT
48a21c645f143a4fcfc517da6517f08c8063e46cfd5ee4278a5ad2600818ba8a
RemcosRAT
71883cd434af078341c6e3373713a7cce3f97307ede83e427ea74d43025ec233
RemcosRAT
84d9c4b6e6175152b0a96f6d629372d0e0f6709609373e0ccb0679b6b854b4e8
RemcosRAT
8bb5e094fe793a06740ea5ab43ced903c8be03b623bf604fd10b704941d503b2
RemcosRAT
8fde2bd043c16448fe13d733e35e388de4a95938f187682f60725d27da3653c8
RemcosRAT
96cdf96daea9002d2dcf31e5d37b7df4942ef6085209df1f6b269b9baca3e40a
RemcosRAT
fa0844502ea0ef910ad1ee3f7c82c8e0bc0009dc56f6a671c843cfb99e8c289f
RemcosRAT
+ 49 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210112-xgdy262wq6/
Behaviour
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
Deletes itself
Loads dropped DLL
Adds policy Run key to start application
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
1.remcosagent.com:10001
Unpacked files
SH256 hash:
9fad68bbaba3bcd69e3b8100eb5c035ea2caf59e0f9115e36667a62b2dce84bb
MD5 hash:
80c06791542349507d8d49ee9177bee3
SHA1 hash:
b15f778e61db3d629cd222fc2e144e4ae9040f14
Link:
https://www.unpac.me/results/d9542c85-b8ff-49bd-84b1-898258ea9ab2/
SH256 hash:
49dc26861fffee2f6440e56a10b7086ea305d2f16bb9e27ba3e08b9893557f86
MD5 hash:
e732cd6decfed3503b4020899d5a56f9
SHA1 hash:
024c1bf147c698e92aae340bbee323601d02a787
Link:
https://www.unpac.me/results/d9542c85-b8ff-49bd-84b1-898258ea9ab2/
SH256 hash:
c06d4e3d0205d9bdd4a4b40b8da710d698b3a5d73a1626c9ca058c10b2c6d00c
MD5 hash:
7f67414b3fd29299f2d29ad7c2afb995
SHA1 hash:
2ec40d57c08c47433a6d044d271d74005dddae8d
Link:
https://www.unpac.me/results/d9542c85-b8ff-49bd-84b1-898258ea9ab2/
SH256 hash:
4f81e273da20c5b9835ce6ca57cc061d77764f9e3927bdb1505cb791bf50b046
MD5 hash:
29e19b5dce96140a8b90152b16bd44af
SHA1 hash:
4f3dc6eb876bb58f53966980a9c451a04ec17d8a
Link:
https://www.unpac.me/results/d9542c85-b8ff-49bd-84b1-898258ea9ab2/
SH256 hash:
1ffac68def5ce68f650ac8229d3a40e9ac1fc89adeddc9a6041c3dcebb6d1933
MD5 hash:
8503258c9fb8f1519204a2f9a4ccd873
SHA1 hash:
63a62f152f2fe8d79aa29eb3133ba180b03ed416
Link:
https://www.unpac.me/results/d9542c85-b8ff-49bd-84b1-898258ea9ab2/
SH256 hash:
3911078a40722d26e46af979af8f96644b4c3008a4b6d6a40958eea63464cb86
MD5 hash:
9dca921ee6daa9b645efd93410033d0c
SHA1 hash:
82ad3adff3f5e4e85634d3d7af861a35754720d8
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/d9542c85-b8ff-49bd-84b1-898258ea9ab2/
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/9fad68bbaba3bcd69e3b8100eb5c035ea2caf59e0f9115e36667a62b2dce84bb

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
Rule name:win_remcos_g0
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann<at>fkie.fraunhofer.de>

File information

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

Malspam

RemcosRAT

rar 26aa05c1694008b05500fc28036a92eceee2ad969ac50b71a863b5673385f95c

RemcosRAT

Executable exe 9fad68bbaba3bcd69e3b8100eb5c035ea2caf59e0f9115e36667a62b2dce84bb

(this sample)

  
Dropped by
MD5 fce84fbfa98f238badcf3d887db10dd3
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 26aa05c1694008b05500fc28036a92eceee2ad969ac50b71a863b5673385f95c
Cape
Cape
https://www.capesandbox.com/analysis/111582/

Comments