MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e7528badee13ec6101ba01cd2763bdc754f144c9d520c199fc4f179fde04098. 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 2 File information Comments
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SHA256 hash: 4e7528badee13ec6101ba01cd2763bdc754f144c9d520c199fc4f179fde04098
SHA3-384 hash: 4cbc4993e987bee5de3f07a4fa03ad0dd16eb2ba46e347385d34540e23545e3bfc3fd28f920d0f489919d2a035043976
SHA1 hash: d4f39668cd5307fb33332fa8fbe5a4147a27e8c5
MD5 hash: e3160ad51d4d9df6ae40ad37dbd69fd8
humanhash: jupiter-white-red-black
File name:mail.exe
Download: download sample
Signature RemcosRAT
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File size:1'041'408 bytes
First seen:2021-06-28 13:58:21 UTC
Last seen:2021-06-28 14:51:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:wPwgSlkYK65Mao7vunIX6RCp2aRm3hJh4tWKG1Gu7iTQezjBwv:wykujo7vuIX6RCAqmxJh4tc1Gu7Kzuv
Threatray 302 similar samples on MalwareBazaar
TLSH 2125F029777796D9EC91C5792F06C1781AA72CC0E848CB6EB0D8BF6FB5F509560802BC
Reporter James_inthe_box
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
179
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Remittance Copy.xls
Verdict:
Malicious activity
Analysis date:
2021-06-11 14:14:33 UTC
Tags:
macros macros-on-open opendir loader
Link:
https://app.any.run/tasks/67464e84-bda6-44d7-bd88-729c2cb55c8b

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/168594/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.835.8431.25834.UNOFFICIAL
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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.
Malware family:
NanoCoreRAT
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/864a3918-79f6-4fe8-bd49-a7f86aa7b040
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/808851
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates an undocumented autostart registry key
Delayed program exit found
Detected Remcos RAT
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 441262 Sample: mail.exe Startdate: 28/06/2021 Architecture: WINDOWS Score: 100 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 Antivirus detection for URL or domain 2->71 73 13 other signatures 2->73 10 mail.exe 3 10 2->10         started        process3 file4 49 C:\Users\user\AppData\Roaming\...\outlook.exe, PE32 10->49 dropped 51 C:\Users\user\AppData\Local\Temp\mail.exe, PE32 10->51 dropped 53 C:\Users\user\...\mail.exe:Zone.Identifier, ASCII 10->53 dropped 55 2 other malicious files 10->55 dropped 75 Creates an undocumented autostart registry key 10->75 77 Writes to foreign memory regions 10->77 79 Allocates memory in foreign processes 10->79 81 Injects a PE file into a foreign processes 10->81 14 mail.exe 10->14         started        17 mail.exe 3 10->17         started        20 wscript.exe 1 10->20         started        22 mail.exe 10->22         started        signatures5 process6 dnsIp7 83 Multi AV Scanner detection for dropped file 14->83 85 Machine Learning detection for dropped file 14->85 87 Contains functionality to steal Chrome passwords or cookies 14->87 99 3 other signatures 14->99 57 eter101.dvrlists.com 79.134.225.112, 2050 FINK-TELECOM-SERVICESCH Switzerland 17->57 89 Writes to foreign memory regions 17->89 91 Allocates memory in foreign processes 17->91 93 Injects a PE file into a foreign processes 17->93 24 svchost.exe 1 12 17->24         started        26 svchost.exe 17->26         started        28 svchost.exe 17->28         started        59 192.168.2.1 unknown unknown 20->59 95 Wscript starts Powershell (via cmd or directly) 20->95 97 Adds a directory exclusion to Windows Defender 20->97 30 powershell.exe 16 20->30         started        signatures8 process9 process10 32 iexplore.exe 3 91 24->32         started        34 conhost.exe 30->34         started        process11 36 iexplore.exe 32->36         started        39 iexplore.exe 32->39         started        41 iexplore.exe 70 32->41         started        43 iexplore.exe 32->43         started        dnsIp12 45 WerFault.exe 36->45         started        47 WerFault.exe 39->47         started        61 github.com 140.82.121.3, 443, 49744, 49745 GITHUBUS United States 41->61 63 avatars.githubusercontent.com 185.199.108.133, 443, 49749, 49750 FASTLYUS Netherlands 41->63 65 2 other IPs or domains 41->65 process13
Detection:
remcos
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Link:
https://mwdb.cert.pl/sample/4e7528badee13ec6101ba01cd2763bdc754f144c9d520c199fc4f179fde04098/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-06-15 03:35:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
4969dc5e2b7349e189cdc079c2e9e02014e559d1315564b6d6fd18eeb252c605
RemcosRAT
5f06da67169389577ec237bfb0c3e0e9203833048f48081deed7b6201ad18c27
RemcosRAT
a0bb5a244b144a8e10087fd70a04580c3bb8c4c8add7da671a06f10020473004
RemcosRAT
a5ae2e0f9a8f1c50e21ea93f4a195097753cd16436ffa4e946add38da873c8cb
RemcosRAT
b61f6b794f38f736e90ae8aa04e5f71acc8d5470c08ef8841c16087b6710a388
RemcosRAT
ba410d1931172915171c7769f798d6aaa1eab9f923c98f178f615ad75a6544f2
RemcosRAT
ba4b51ae64c68b32d126322b51b41dce7c300c01faed97aca35ff142e121a914
RemcosRAT
c85d33153d768a2f98066c8ba07e58890cbac4c185e4ef45739fb03750e1088b
RemcosRAT
d9c227ed57ca134b518a38f74580faf7f3c5e05c5caae3ed3166641341950ee7
RemcosRAT
f138fb2bb1b74757f02ed6159d3766cd5bbae760e04907ea7520bc09dd968783
RemcosRAT
+ 292 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:june build rat
Link:
https://tria.ge/reports/210628-c6r5crbhja/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Remcos
Malware Config
C2 Extraction:
eter101.dvrlists.com:2050
Unpacked files
SH256 hash:
af68afe9f36457fe212315ae2c5b48cd84cb16b878a52524c50a7697d68b24ff
MD5 hash:
cf59b9aebe0382691f77940028c793d9
SHA1 hash:
ecdad0794806aa34bd77fa90ab309203d22c5064
Link:
https://www.unpac.me/results/8b3c65dd-ba5e-4a9e-8d93-ee02fbb8f2b3/
SH256 hash:
9151948c9a70c126d65656ad90bcc3c6beea9791419cc46dc48e6be320b9c6d4
MD5 hash:
94b6a7aaf62669e904a926089c9808b9
SHA1 hash:
980ad5199c03d44d680a7d09c12b60f65a43e08b
Link:
https://www.unpac.me/results/8b3c65dd-ba5e-4a9e-8d93-ee02fbb8f2b3/
SH256 hash:
25d09181474a0ff8e9e31781452ef7e556ecee7fda0e48bf356cba12aadc1943
MD5 hash:
817938e1aaa7b0121f7dadc5d170e889
SHA1 hash:
3bc3b83c0a47a77daaba2f29c7fcb09bb08129ea
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/8b3c65dd-ba5e-4a9e-8d93-ee02fbb8f2b3/
SH256 hash:
4e7528badee13ec6101ba01cd2763bdc754f144c9d520c199fc4f179fde04098
MD5 hash:
e3160ad51d4d9df6ae40ad37dbd69fd8
SHA1 hash:
d4f39668cd5307fb33332fa8fbe5a4147a27e8c5
Link:
https://www.unpac.me/results/8b3c65dd-ba5e-4a9e-8d93-ee02fbb8f2b3/
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/4e7528badee13ec6101ba01cd2763bdc754f144c9d520c199fc4f179fde04098

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/168594/

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