MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 522a495b289cf22898f762f18571b8839194e6232cb80fbb28dc426cbeeee323. 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: 12


Intelligence 12 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 522a495b289cf22898f762f18571b8839194e6232cb80fbb28dc426cbeeee323
SHA3-384 hash: 23edb5c3e1c860bb8b488ddd23ad2d6934820424454da62fac8f72cbbb52374119ad7ca9b7595d31a139902cd6048af9
SHA1 hash: f8e47d302f58e11940a5f753dd4ce956d8f0861e
MD5 hash: 50ad62c4c5cbc188ef34595666e3b21c
humanhash: alpha-diet-timing-florida
File name:03728d6617cd13b19bd69625f7ead202.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:688'640 bytes
First seen:2021-02-15 06:53:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:d5gA0mcPdUfzH3cbh2z0Ohyec7jyr+q2OJB8Yf8:d+7PSfzHsbhShyecCr+Uj8Yf
Threatray 1'548 similar samples on MalwareBazaar
TLSH AAE427229192A618E0ED76F75720C11D3653FCCE3DB5A02529C636BBAD7B61043B89F3
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
sandshoe.myfirewall.org:2404

Intelligence

File Origin
# of uploads :
1
# of downloads :
125
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
03728d6617cd13b19bd69625f7ead202.exe
Verdict:
Malicious activity
Analysis date:
2021-02-15 06:58:30 UTC
Tags:
trojan rat remcos keylogger
Link:
https://app.any.run/tasks/c60d6ab2-87e6-4f1e-bf7f-f4cec68c62c3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/117121/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42845.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
Launching a process
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Verdict:
SUSPICIOUS
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:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/607785
Signature
Allocates memory in foreign processes
Binary contains a suspicious time stamp
C2 URLs / IPs found in malware configuration
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
Detected unpacking (creates a PE file in dynamic memory)
Found malware configuration
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 domain / URL
Multi AV Scanner detection for dropped file
Sigma detected: Remcos
Sigma detected: Suspicious Svchost Process
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 352923 Sample: 03728d6617cd13b19bd69625f7e... Startdate: 15/02/2021 Architecture: WINDOWS Score: 100 70 Multi AV Scanner detection for domain / URL 2->70 72 Found malware configuration 2->72 74 Malicious sample detected (through community Yara rule) 2->74 76 7 other signatures 2->76 13 03728d6617cd13b19bd69625f7ead202.exe 3 2->13         started        17 svchosts.exe 2 2->17         started        19 svchosts.exe 2 2->19         started        process3 file4 60 03728d6617cd13b19bd69625f7ead202.exe.log, ASCII 13->60 dropped 92 Contains functionality to steal Chrome passwords or cookies 13->92 94 Contains functionality to capture and log keystrokes 13->94 96 Contains functionality to inject code into remote processes 13->96 98 Contains functionality to steal Firefox passwords or cookies 13->98 21 03728d6617cd13b19bd69625f7ead202.exe 4 5 13->21         started        100 Injects a PE file into a foreign processes 17->100 24 svchosts.exe 17->24         started        26 svchosts.exe 17->26         started        28 svchosts.exe 19->28         started        signatures5 process6 file7 56 C:\Users\user\AppData\...\svchosts.exe, PE32 21->56 dropped 58 C:\Users\...\svchosts.exe:Zone.Identifier, ASCII 21->58 dropped 30 wscript.exe 1 21->30         started        process8 process9 32 cmd.exe 1 30->32         started        34 conhost.exe 30->34         started        process10 36 svchosts.exe 3 32->36         started        39 conhost.exe 32->39         started        signatures11 78 Multi AV Scanner detection for dropped file 36->78 80 Detected unpacking (creates a PE file in dynamic memory) 36->80 82 Machine Learning detection for dropped file 36->82 84 Injects a PE file into a foreign processes 36->84 41 svchosts.exe 36->41         started        45 svchosts.exe 36->45         started        process12 dnsIp13 68 sandshoe.myfirewall.org 185.229.243.67, 2404, 49729 AS40676US Netherlands 41->68 86 Writes to foreign memory regions 41->86 88 Allocates memory in foreign processes 41->88 90 Injects a PE file into a foreign processes 41->90 47 svchost.exe 41->47         started        signatures14 process15 process16 49 iexplore.exe 47->49         started        process17 51 iexplore.exe 49->51         started        54 iexplore.exe 49->54         started        dnsIp18 62 github.com 140.82.121.4, 443, 49738, 49739 GITHUBUS United States 51->62 64 avatars.githubusercontent.com 185.199.111.133, 443, 49742, 49743 FASTLYUS Netherlands 51->64 66 185.199.110.133, 443, 49758, 49759 FASTLYUS Netherlands 54->66
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/522a495b289cf22898f762f18571b8839194e6232cb80fbb28dc426cbeeee323/
Threat name:
Win32.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2021-02-15 06:54:11 UTC
AV detection:
11 of 48 (22.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kiveswzittzcrghxmlyyk4nyqoizjzrdfs4a7ozi3rbgzpxo4mrq._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
+ 1'538 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210215-paenp5d662/
Behaviour
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:
sandshoe.myfirewall.org:2404
Unpacked files
SH256 hash:
2ec41720b412f91f91daaefea38007449491b2c016238aa8f23b6866c89bc788
MD5 hash:
987ce346069cf47535e5ac57265c7228
SHA1 hash:
d0085325ed78fcac6d1f605753237abd1c40db22
Link:
https://www.unpac.me/results/6c363d78-64d0-486f-b8cb-2013b363022f/
SH256 hash:
92f20e46a5bafb614d88e7b0c8fc154f4ccdb26fe4f53c82ce9600b1be5a7407
MD5 hash:
d4d31ae0d5b6e8ef4223ab2ab28da249
SHA1 hash:
cfc43d30a0e2e76003d76e515629caaa783ef576
Link:
https://www.unpac.me/results/6c363d78-64d0-486f-b8cb-2013b363022f/
SH256 hash:
025c3342834cf57c87b59d4880f33ee3ea354e1cccb5cfced81624dde65f8226
MD5 hash:
536f263853ed851ac321d43feb730749
SHA1 hash:
68c0312fc760a43a34eda701ac43f8391e8c9604
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/6c363d78-64d0-486f-b8cb-2013b363022f/
Parent samples :
65796dbe5e0bc0d3108d244d9c9721bd8403c6101dc05a2b9aab513f69afebaa
0c4335d912b6eaf64d36e5a46e54b23068f367867944f01e9ebbea9f9267a605
522a495b289cf22898f762f18571b8839194e6232cb80fbb28dc426cbeeee323
SH256 hash:
522a495b289cf22898f762f18571b8839194e6232cb80fbb28dc426cbeeee323
MD5 hash:
50ad62c4c5cbc188ef34595666e3b21c
SHA1 hash:
f8e47d302f58e11940a5f753dd4ce956d8f0861e
Link:
https://www.unpac.me/results/6c363d78-64d0-486f-b8cb-2013b363022f/
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/522a495b289cf22898f762f18571b8839194e6232cb80fbb28dc426cbeeee323

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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:SUSP_Modified_SystemExeFileName_in_File
Create hunting rule
Author:Florian Roth
Description:Detecst a variant of a system file name often used by attackers to cloak their activity
Reference:https://www.symantec.com/blogs/threat-intelligence/seedworm-espionage-group
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

Executable exe 522a495b289cf22898f762f18571b8839194e6232cb80fbb28dc426cbeeee323

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/117121/

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