MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1befcab4a8d97cea8592fa608814f038fd956a5f1f2ddfd9ee8b9402045a705a. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1befcab4a8d97cea8592fa608814f038fd956a5f1f2ddfd9ee8b9402045a705a
SHA3-384 hash: 09aaedb6627dacdbecddb468d1407ecd385751947c1f379048f7b41accbccc4e66972e24d7e6e5755224443e89b1e6cc
SHA1 hash: bc2c53b6f35fcb3ba7f3b38c66448a5397fa9f57
MD5 hash: 01fec6f49769c6ce8790807c6f956e52
humanhash: july-tango-jersey-may
File name:Dokumen penerimaan DHL 1190406570, pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:622'592 bytes
First seen:2020-10-09 06:25:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:TwGCETjKET/9nHME4kVhMJR9pZkZNldeTyaOLk:EGCET/Rw8hMhpWZNle9a
Threatray 794 similar samples on MalwareBazaar
TLSH 4ED4D022B3D85F91E17EA77845205501A3F5B927E332E38E7DAE10DE09E2F819763712
Reporter abuse_ch
Tags:DHL exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: vps.knei-ttrati.com
Sending IP: 45.95.169.151
From: DHL Express Cargo <delivery@dhl.com>
Subject: Pengiriman kargo Dhl
Attachment: Dokumen penerimaan DHL 1190406570, pdf.iso (contains "Dokumen penerimaan DHL 1190406570, pdf.exe")

RemcosRAT C2:
doublegrace2020.ddns.net:7171 (185.19.85.135)

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/69432/
Result
Verdict:
Malware
Maliciousness:

Behaviour
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:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/486331
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
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
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
Writes many files with high entropy
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 295616 Sample: Dokumen penerimaan DHL 1190... Startdate: 09/10/2020 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 14 other signatures 2->79 11 Dokumen penerimaan DHL 1190406570, pdf.exe 7 2->11         started        15 remcos.exe 2->15         started        17 remcos.exe 3 2->17         started        process3 file4 61 C:\Users\user\AppData\...\JvumHgNFJdG.exe, PE32 11->61 dropped 63 C:\Users\...\JvumHgNFJdG.exe:Zone.Identifier, ASCII 11->63 dropped 65 C:\Users\user\AppData\Local\...\tmp296D.tmp, XML 11->65 dropped 67 Dokumen penerimaan...406570, pdf.exe.log, ASCII 11->67 dropped 89 Injects a PE file into a foreign processes 11->89 19 Dokumen penerimaan DHL 1190406570, pdf.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        69 C:\Users\user\AppData\...\remcos.exe.log, ASCII 17->69 dropped signatures5 process6 file7 49 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 19->49 dropped 51 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 19->51 dropped 28 wscript.exe 1 19->28         started        30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        process8 process9 34 cmd.exe 1 28->34         started        process10 36 remcos.exe 4 34->36         started        39 conhost.exe 34->39         started        signatures11 81 Multi AV Scanner detection for dropped file 36->81 83 Machine Learning detection for dropped file 36->83 85 Contains functionality to steal Chrome passwords or cookies 36->85 87 4 other signatures 36->87 41 remcos.exe 36->41         started        45 schtasks.exe 1 36->45         started        process12 dnsIp13 71 doublegrace2020.ddns.net 185.19.85.135, 49736, 7171 DATAWIRE-ASCH Switzerland 41->71 53 C:\Users\user\...\time_20201009_090643.dat, data 41->53 dropped 55 C:\Users\user\...\time_20201009_090642.dat, data 41->55 dropped 57 C:\Users\user\...\time_20201009_090641.dat, data 41->57 dropped 59 66 other malicious files 41->59 dropped 47 conhost.exe 45->47         started        file14 process15
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1befcab4a8d97cea8592fa608814f038fd956a5f1f2ddfd9ee8b9402045a705a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-09 01:47:05 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dpx4vnfi3f6ovbms7jqiqfhqhd6zk2s7d4w57wporokaebc2obna._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
4791861118e0be776fd14153e2feca7d25f5a91a6c32a997385f5ae272e3d7c8
RemcosRAT
485c1301f4bc84bc2d274f53222cf7ca5fbd8af8728d1aaa977a6574f577fb87
RemcosRAT
54c9967a2b3467f1a5961630d0bd429400e781de19866a383267c40e0f9acf2f
RemcosRAT
6274c01dd6783517a68267d2c6c2af38143ed35074cfc2372d8bc385a7c5f4e9
RemcosRAT
6c882aeb918e424cefe1068a6d3fbff5526c31e185716bf3a0d5ae0295772f09
RemcosRAT
763d415415add2ffc6d482373e211c8c8b647ee46ade5e8dacce10f79d515e2b
RemcosRAT
83eb442b175e4fe5a2fde6e8d72618eee280398f89a81da1f9c118d2c46032d4
RemcosRAT
a1c644a64801c61e1649517c3debc28b194b4f9d43e1a99bc28724f652c3ca5e
RemcosRAT
e39c2e98071d4440d02e6d1aa86111536d6d01554489bd71f890455c05e424d3
RemcosRAT
f412da03defe68cc6e1f264449adf519a4c5470c51e7b502854f7fbf358f8516
RemcosRAT
+ 784 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
rat family:remcos persistence
Link:
https://tria.ge/reports/201009-qlgenzh62a/
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:
doublegrace2020.ddns.net:7171
Unpacked files
SH256 hash:
13b24d3a09d099dabe41cd6cd71607a77e14640b1e9b4ed2d60f6c012f191c43
MD5 hash:
109cedae3c384a1913107f1efad2b7c8
SHA1 hash:
1f7f35b0ed85fa12bb839cbce698e59a30813420
Link:
https://www.unpac.me/results/2ec7ccc8-1a57-4706-9944-5e5a62f3ea39/
SH256 hash:
dd95b4d1f659cf3f0f0c991bd384491b80d15a0c5623171ea250d3de2329bb65
MD5 hash:
50310bcd918d82e67e42445dc3c73f2e
SHA1 hash:
ca7d73409171d5d6e86f437ba6a671fadbf16a5f
Link:
https://www.unpac.me/results/2ec7ccc8-1a57-4706-9944-5e5a62f3ea39/
SH256 hash:
31ea1b024cea75b8ebd88e03241172c8f865175246dc5786efdcd8490f159e07
MD5 hash:
7fbfc04b90cb8fd7b44f4014c9b95425
SHA1 hash:
e5b27f28ad2856864e3bea7345456bd6ac98f248
Link:
https://www.unpac.me/results/2ec7ccc8-1a57-4706-9944-5e5a62f3ea39/
SH256 hash:
9e6c69cdc5127863dd5f70c213c1c691d10d35e8cb0a8d4283ea76d50090fec2
MD5 hash:
78d75f044a80df9b2990b99b4e41d963
SHA1 hash:
5773172248ace768fc24f9d7f7b4841bb0bd2e43
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/2ec7ccc8-1a57-4706-9944-5e5a62f3ea39/
Parent samples :
1befcab4a8d97cea8592fa608814f038fd956a5f1f2ddfd9ee8b9402045a705a
b5ba143b36eb77a1899c07ef016155b3b7ef73b83456cadf534245896360b902
SH256 hash:
1befcab4a8d97cea8592fa608814f038fd956a5f1f2ddfd9ee8b9402045a705a
MD5 hash:
01fec6f49769c6ce8790807c6f956e52
SHA1 hash:
bc2c53b6f35fcb3ba7f3b38c66448a5397fa9f57
Link:
https://www.unpac.me/results/2ec7ccc8-1a57-4706-9944-5e5a62f3ea39/
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/1befcab4a8d97cea8592fa608814f038fd956a5f1f2ddfd9ee8b9402045a705a

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: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: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 e3423cb68fd67807d9d8035416d7ce9022a86345ddb8d339191bfdc3d6444c6c

RemcosRAT

Executable exe 1befcab4a8d97cea8592fa608814f038fd956a5f1f2ddfd9ee8b9402045a705a

(this sample)

  
Dropped by
MD5 8e0ac6434849e8f3a75871d316e3ef8a
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 e3423cb68fd67807d9d8035416d7ce9022a86345ddb8d339191bfdc3d6444c6c
Cape
Cape
https://www.capesandbox.com/analysis/69432/

Comments