MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 85eb2c7d5206686595f009a4e5a57a5743f736fa457454477377bea7368a2ab8. 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: 85eb2c7d5206686595f009a4e5a57a5743f736fa457454477377bea7368a2ab8
SHA3-384 hash: 99c4fd9b9c5566e185032a91329c8952772dfa78822c43fcc97500a9bc49b6a79f0c512479fc482e3d3d3cf367ba2487
SHA1 hash: 5fde0b09b3c9d624c21b3085693b784ab28c3ef2
MD5 hash: c372776aabacdad756fabec8425692b2
humanhash: iowa-orange-harry-diet
File name:ROTAREX-ORDEN#0012102020.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:832'512 bytes
First seen:2020-10-13 05:54:05 UTC
Last seen:2020-10-13 07:08:33 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 12288:SUr8g42IGYQub5vAYLITVW85E15chnwA8wV3UOqJ3vH6xKcU40xMX/9Qey:Slg7RYQutOJe5owfwVGVSxKt40xk/0
Threatray 1'345 similar samples on MalwareBazaar
TLSH 2405D0F1F389AE85E26A0F39443398009BF6FE6A5536C35F1C9D309826B7752A157B03
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: mail.epidermhaber.com
Sending IP: 213.128.77.74
From: ROTAREX GROUP <ventas@rotarexgroup.com>
Subject: Re: Muestra requerida#ROTAREX
Attachment: ROTAREX-ORDEN0012102020.iso (contains "ROTAREX-ORDEN#0012102020.exe")

RemcosRAT C2:
wilsondavid.ddns.net

Intelligence

File Origin
# of uploads :
2
# of downloads :
91
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/70266/
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Generic.cc.23049.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/489200
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
Disables Windows Defender (via service or powershell)
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
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 297051 Sample: ROTAREX-ORDEN#0012102020.exe Startdate: 13/10/2020 Architecture: WINDOWS Score: 100 44 wilsondavid.ddns.net 2->44 46 cdn.onenote.net 2->46 50 Malicious sample detected (through community Yara rule) 2->50 52 Multi AV Scanner detection for dropped file 2->52 54 Sigma detected: Scheduled temp file as task from temp location 2->54 56 11 other signatures 2->56 8 ROTAREX-ORDEN#0012102020.exe 1 7 2->8         started        signatures3 process4 file5 34 C:\Users\user\AppData\Roaming\YkCAjkt.exe, PE32 8->34 dropped 36 C:\Users\user\...\YkCAjkt.exe:Zone.Identifier, ASCII 8->36 dropped 38 C:\Users\user\AppData\Local\...\tmpF0B3.tmp, XML 8->38 dropped 40 C:\Users\...\ROTAREX-ORDEN#0012102020.exe.log, ASCII 8->40 dropped 58 Contains functionality to steal Chrome passwords or cookies 8->58 60 Contains functionality to capture and log keystrokes 8->60 62 Contains functionality to inject code into remote processes 8->62 64 3 other signatures 8->64 12 ROTAREX-ORDEN#0012102020.exe 8->12         started        16 powershell.exe 25 8->16         started        18 powershell.exe 23 8->18         started        20 14 other processes 8->20 signatures6 process7 dnsIp8 48 wilsondavid.ddns.net 185.165.153.28, 1145, 49733, 49737 DAVID_CRAIGGG Netherlands 12->48 42 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 12->42 dropped 22 conhost.exe 16->22         started        24 conhost.exe 18->24         started        26 conhost.exe 20->26         started        28 conhost.exe 20->28         started        30 conhost.exe 20->30         started        32 10 other processes 20->32 file9 process10
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/85eb2c7d5206686595f009a4e5a57a5743f736fa457454477377bea7368a2ab8/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-12 21:24:25 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qxvsy7ksazuglfpqbgsoljl2k5b7onx2iv2fir3to67konukfk4a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
15170d0dbe467efc4e38156ed4e03702ae19af44c100d7df7a75c6dbdb7ac587
RemcosRAT
2edfccccc1152b413ba328644e11291bcf5d5c66078dc2f313469f328cd481b3
RemcosRAT
46200359aaf042b4f42a8ee7b23b1b573013d80e7335ac8fb5c870dfdd9f02d7
RemcosRAT
4791861118e0be776fd14153e2feca7d25f5a91a6c32a997385f5ae272e3d7c8
RemcosRAT
50e7b9a736f734ffd4d57d93f93a89e454a4e5147ec7dac2c3f3e5f5fee6fd5f
RemcosRAT
6274c01dd6783517a68267d2c6c2af38143ed35074cfc2372d8bc385a7c5f4e9
RemcosRAT
6c882aeb918e424cefe1068a6d3fbff5526c31e185716bf3a0d5ae0295772f09
RemcosRAT
736bd7b09aa1e987edac64868cc8e5db0d86e709652e0588e2023d052f3def8f
RemcosRAT
76d8f7539bba2cd5acd833f384ad0fb2191ce3553b65416de53869461622b177
RemcosRAT
a1c644a64801c61e1649517c3debc28b194b4f9d43e1a99bc28724f652c3ca5e
RemcosRAT
+ 1'335 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
evasion trojan rat family:remcos
Link:
https://tria.ge/reports/201013-jvtrkatt8s/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Windows security modification
Modifies Windows Defender Real-time Protection settings
Remcos
Malware Config
C2 Extraction:
wilsondavid.ddns.net:1145
Unpacked files
SH256 hash:
85eb2c7d5206686595f009a4e5a57a5743f736fa457454477377bea7368a2ab8
MD5 hash:
c372776aabacdad756fabec8425692b2
SHA1 hash:
5fde0b09b3c9d624c21b3085693b784ab28c3ef2
Link:
https://www.unpac.me/results/ea20dce0-4d2c-434e-bfd6-81cf16389d23/
SH256 hash:
13b24d3a09d099dabe41cd6cd71607a77e14640b1e9b4ed2d60f6c012f191c43
MD5 hash:
109cedae3c384a1913107f1efad2b7c8
SHA1 hash:
1f7f35b0ed85fa12bb839cbce698e59a30813420
Link:
https://www.unpac.me/results/ea20dce0-4d2c-434e-bfd6-81cf16389d23/
SH256 hash:
4a4a4b6397a59396a39a7d3cebef530090920ddc4e4c8640b58e933d5008c2f2
MD5 hash:
b9d9343c8f4ba58f30c0fb7379c277e2
SHA1 hash:
6d595a2e9a2248d1d1d3e6553b7552d49a1e80f4
Link:
https://www.unpac.me/results/ea20dce0-4d2c-434e-bfd6-81cf16389d23/
SH256 hash:
ba8911639818feb86b374c7c7dcca731e8abdf7f114935337cd1367eb1e1442b
MD5 hash:
6cddf0d546ec61fe4b481b8a79320c83
SHA1 hash:
cc189f93bfdaafa5aff8c6d4396bbccaced9c918
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/ea20dce0-4d2c-434e-bfd6-81cf16389d23/
SH256 hash:
e7e74a6e74799ed84d9dec2a1131e6eb45f2aea24b3ca1a5d322b10f099da0bb
MD5 hash:
8687049a184f19abcbcf1b44bb9664c4
SHA1 hash:
d60dd07f182833f7e24f98e9917e7275a0dceaef
Link:
https://www.unpac.me/results/ea20dce0-4d2c-434e-bfd6-81cf16389d23/
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/85eb2c7d5206686595f009a4e5a57a5743f736fa457454477377bea7368a2ab8

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 109638b877ede704a66f28b1881255bacfcb9b1ad4a1023e11af266a63f9ac36

RemcosRAT

Executable exe 85eb2c7d5206686595f009a4e5a57a5743f736fa457454477377bea7368a2ab8

(this sample)

  
Dropped by
MD5 3e82566db2c51795a775e48a67e6c054
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/70266/
  
Dropped by
SHA256 109638b877ede704a66f28b1881255bacfcb9b1ad4a1023e11af266a63f9ac36

Comments