MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 763d415415add2ffc6d482373e211c8c8b647ee46ade5e8dacce10f79d515e2b. 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: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 763d415415add2ffc6d482373e211c8c8b647ee46ade5e8dacce10f79d515e2b
SHA3-384 hash: 7bec3b90baa7a3f75f7acd31fa23a9ef86cedfc96cd63c99c0b59b606cfd98eff58a0164868af7ee448ebf9d0752c432
SHA1 hash: 0d2fb386e58a8b20b4b73bb4835ebd4a637861e9
MD5 hash: 122cb8f14b324667bd5c1e5905e07a78
humanhash: snake-cola-batman-eighteen
File name:2nd INVOICE FOR SMT NCPH.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:800'768 bytes
First seen:2020-10-07 17:16:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c78d30790e99f5a402572e371918a79a (1 x GuLoader, 1 x MassLogger, 1 x HawkEye)
ssdeep 12288:J0O5+h6mY+CRvSt8UEPeXl8kdsC/FFcFNS2XD76wRloVGMc9uk:u4JmYbdSi0Xhd5d8NS6D73cGMmV
Threatray 1'058 similar samples on MalwareBazaar
TLSH B005AE23B1A08877C173263D9C1B57B46B26FE103E28AD462BF5DD4C9F397917929283
Reporter abuse_ch
Tags:exe nVpn RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: pro28.emailserver.vn
Sending IP: 103.15.48.248
From: DS Smith <admin@cgco.com.vn>
Subject: PLEASE TREAT AS URGENT-FINAL INVOICE FOR MT25
Attachment: 2nd INVOICE FOR SMT NCPH.zip (contains "2nd INVOICE FOR SMT NCPH.exe")

RemcosRAT C2:
23.105.131.157:62084

Intelligence

File Origin
# of uploads :
1
# of downloads :
135
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/69010/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the Program Files 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
Sending a custom TCP request
Reading critical registry keys
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Stealing user critical data
Enabling autorun
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/484492
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Connects to many ports of the same IP (likely port scanning)
Contains functionality to capture and log keystrokes
Contains functionality to detect sleep reduction / modifications
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
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Initial sample is a PE file and has a suspicious name
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)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Suspicious Svchost Process
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file access)
Yara detected Keylogger Generic
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 294689 Sample: 2nd INVOICE FOR SMT NCPH.exe Startdate: 07/10/2020 Architecture: WINDOWS Score: 100 67 Malicious sample detected (through community Yara rule) 2->67 69 Antivirus detection for dropped file 2->69 71 Antivirus / Scanner detection for submitted sample 2->71 73 18 other signatures 2->73 10 remcos.exe 2->10         started        13 2nd INVOICE FOR SMT NCPH.exe 2->13         started        15 remcos.exe 2->15         started        17 remcos.exe 2->17         started        process3 signatures4 79 Maps a DLL or memory area into another process 10->79 19 remcos.exe 2 5 10->19         started        24 2nd INVOICE FOR SMT NCPH.exe 6 5 13->24         started        26 remcos.exe 15->26         started        28 svchost.exe 15->28         started        30 remcos.exe 17->30         started        process5 dnsIp6 57 23.105.131.157, 49756, 49757, 49758 LEASEWEB-USA-NYC-11US United States 19->57 51 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 19->51 dropped 75 Injects a PE file into a foreign processes 19->75 32 remcos.exe 1 19->32         started        35 remcos.exe 13 19->35         started        38 remcos.exe 1 19->38         started        53 C:\Program Files (x86)\Remcos\remcos.exe, PE32 24->53 dropped 55 C:\...\remcos.exe:Zone.Identifier, ASCII 24->55 dropped 77 Creates an undocumented autostart registry key 24->77 40 wscript.exe 1 24->40         started        file7 signatures8 process9 dnsIp10 61 Tries to steal Instant Messenger accounts or passwords 32->61 63 Tries to steal Mail credentials (via file access) 32->63 59 192.168.2.1 unknown unknown 35->59 65 Tries to harvest and steal browser information (history, passwords, etc) 35->65 42 cmd.exe 1 40->42         started        signatures11 process12 process13 44 remcos.exe 42->44         started        47 conhost.exe 42->47         started        signatures14 81 Maps a DLL or memory area into another process 44->81 49 remcos.exe 44->49         started        process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/763d415415add2ffc6d482373e211c8c8b647ee46ade5e8dacce10f79d515e2b/
Threat name:
Win32.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2020-10-07 16:59:02 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=oy6ucvavvxjp7rwuqi3t4ii4rsfwi7xenlpf5dnmzyipphkrlyvq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
4096056536154e1fa5a10e3495cd3ddadf7c01022b7b65b0c35a67b2eac2bc6b
RemcosRAT
4ea16682c6d48eb737c1857beceadc3d3077921c03fa62d9dad44d551d92729d
RemcosRAT
6274c01dd6783517a68267d2c6c2af38143ed35074cfc2372d8bc385a7c5f4e9
RemcosRAT
6c882aeb918e424cefe1068a6d3fbff5526c31e185716bf3a0d5ae0295772f09
RemcosRAT
84a066f7294211d47a88b38b0ad9ff2f0e385973c4a3b92b39b2df25e178aca8
RemcosRAT
92f26df2b8881b2971127cc9bd67d17924b895e4124092d49fdc6ebe4d362620
RemcosRAT
a1c561c21720c4f1c3626276db6afc2c12b1aae9304c78518763eb78454f84b8
RemcosRAT
b8d1d962744d0c6ab3abe293c4671b3ba6524f623f9d6f02361bc60eec7b4cb4
RemcosRAT
c0b1ba178d886a9d71fb7ffd5b169bf023021e13c545e3cd8d15461221dd2006
RemcosRAT
f18bf944f9365beda201e63d97f1b93139994d9cef424f855d691cf797c33d0f
RemcosRAT
+ 1'048 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
rat family:remcos persistence spyware
Link:
https://tria.ge/reports/201007-3jernmx32s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Adds policy Run key to start application
Executes dropped EXE
Remcos
Unpacked files
SH256 hash:
763d415415add2ffc6d482373e211c8c8b647ee46ade5e8dacce10f79d515e2b
MD5 hash:
122cb8f14b324667bd5c1e5905e07a78
SHA1 hash:
0d2fb386e58a8b20b4b73bb4835ebd4a637861e9
Link:
https://www.unpac.me/results/b62ff6be-9ae3-42f7-be8b-f721ce2e7dbb/
SH256 hash:
b28195359ac70347b27cd3f59cf82a23957bf31aa7735f58a011294deac3ef5d
MD5 hash:
b70fef2261bbe44f57d6ae1906997e4e
SHA1 hash:
421f3e2b7949ecc19726289d9c299de24443b198
Link:
https://www.unpac.me/results/b62ff6be-9ae3-42f7-be8b-f721ce2e7dbb/
SH256 hash:
9ece7f07dfd6a2373c01441bd0f2d666b0699c62f1b5506a7dd8a44bb6ca8b6c
MD5 hash:
0d4cfda8f43b7cca30dbfcee13dd3bde
SHA1 hash:
7e57a14d6787f935d0210392ffab7cfa8882aadd
Link:
https://www.unpac.me/results/b62ff6be-9ae3-42f7-be8b-f721ce2e7dbb/
SH256 hash:
85865786d0e0e8d3fef41e6a35649ed9e9bf4ef9b520515e773873cb12369ea4
MD5 hash:
2fca5908271f0c9467735da45ceb846d
SHA1 hash:
9e9d602595b6c9ba60d9f895b298faf20c0dd8fb
Link:
https://www.unpac.me/results/b62ff6be-9ae3-42f7-be8b-f721ce2e7dbb/
SH256 hash:
82ade05ea0461db5e08390f79619c95763fd82236baa37136443767f5bc4ec49
MD5 hash:
eff170181217c3f6560cc55f83e29e9b
SHA1 hash:
7d5c556c6a491a0786c4a3798f9c7eee8cfa8292
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/b62ff6be-9ae3-42f7-be8b-f721ce2e7dbb/
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/763d415415add2ffc6d482373e211c8c8b647ee46ade5e8dacce10f79d515e2b

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: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

zip 92b74816e8e609f044a65b471fcb3b51964548ab832cf3d72c510fab5f781a00

RemcosRAT

Executable exe 763d415415add2ffc6d482373e211c8c8b647ee46ade5e8dacce10f79d515e2b

(this sample)

  
Dropped by
MD5 8093665d7876a336fa9555f52f3de18c
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/69010/
  
Dropped by
SHA256 92b74816e8e609f044a65b471fcb3b51964548ab832cf3d72c510fab5f781a00

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