MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 73f93753808172cbab4fbca1e6d8beb8426cf57d1ff000973864d79db32f1054. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 73f93753808172cbab4fbca1e6d8beb8426cf57d1ff000973864d79db32f1054
SHA3-384 hash: b0fda368b4e37ac8e372267a1215f546e2378fcb0780ea56a53323134b9a52e8f6084a9ff78f6a93a9d5fe36922f6318
SHA1 hash: fdf4959f52d2221ccb84ebedfab9a597d1db3594
MD5 hash: 2242de17aea291378bff7deb3217cf45
humanhash: green-september-thirteen-solar
File name:Purchase order PO#R794287.pdf .exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'286'144 bytes
First seen:2022-12-10 08:29:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:oOfyqqeE+HQkddFDYcIYfQq0Vcf3nKS9RbtK9mNxYldb6mR5ceNGWpF:oYzQM/DfIGQql3PhKaxYldb6mAeNG
Threatray 4'435 similar samples on MalwareBazaar
TLSH T10C559ED5BBF2A026F88B32922419369DDC35BD43774BE19667723B4082D48FFB698443
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
186
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/344890/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.21392.5516.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed remcos
Link:
https://www.filescan.io/uploads/6394438c9a505ad9423eab39/reports/de3c5849-6208-4db7-9db0-57bbb7afc50d/overview
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:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0ccf47ce-957a-4830-a5c8-eb8ade6fd1db
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1131829
Signature
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
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 an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 764553 Sample: Purchase order PO#R794287.p... Startdate: 10/12/2022 Architecture: WINDOWS Score: 100 50 Malicious sample detected (through community Yara rule) 2->50 52 Sigma detected: Scheduled temp file as task from temp location 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 10 other signatures 2->56 7 Purchase order PO#R794287.pdf .exe 7 2->7         started        11 bWVyCcKAyoKl.exe 5 2->11         started        process3 file4 36 C:\Users\user\AppData\...\bWVyCcKAyoKl.exe, PE32 7->36 dropped 38 C:\Users\...\bWVyCcKAyoKl.exe:Zone.Identifier, ASCII 7->38 dropped 40 C:\Users\user\AppData\Local\...\tmpE07D.tmp, XML 7->40 dropped 42 C:\...\Purchase order PO#R794287.pdf .exe.log, ASCII 7->42 dropped 58 Adds a directory exclusion to Windows Defender 7->58 60 Injects a PE file into a foreign processes 7->60 13 Purchase order PO#R794287.pdf .exe 2 16 7->13         started        18 powershell.exe 21 7->18         started        20 schtasks.exe 1 7->20         started        62 Multi AV Scanner detection for dropped file 11->62 64 Machine Learning detection for dropped file 11->64 22 schtasks.exe 1 11->22         started        24 bWVyCcKAyoKl.exe 11->24         started        26 bWVyCcKAyoKl.exe 11->26         started        28 bWVyCcKAyoKl.exe 11->28         started        signatures5 process6 dnsIp7 46 147.135.146.243, 1960, 49714 OVHFR France 13->46 48 geoplugin.net 178.237.33.50, 49716, 80 ATOM86-ASATOM86NL Netherlands 13->48 44 C:\ProgramData\remcos\logs.dat, data 13->44 dropped 66 Installs a global keyboard hook 13->66 30 conhost.exe 18->30         started        32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/73f93753808172cbab4fbca1e6d8beb8426cf57d1ff000973864d79db32f1054/
Threat name:
ByteCode-MSIL.Trojan.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2022-12-09 12:29:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
20 of 39 (51.28%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=op4tou4aqfzmxk2pxsq6nwf6xbbgz5l5d7yabfzymtlz3mzpcbka._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0359874ac9be35e969500ffe552298ea0c8056b51c8eac0e3e835c564ef39148
RemcosRAT
123b988cf46a721c113799db30e360848a05941032871f87d1ea6a12bd8e7f0f
RemcosRAT
1e48f5be58b577bc76423894dadf647800f1da1afab2f3c1c82c08f3b66b4981
RemcosRAT
47884208f8a644ae2107eecef208a905e03839cb331ccf0dc6c50a72e969b17a
RemcosRAT
80c597171ff8c2ac89f2c1f1a0db46d8dd6450e537e564a74151ab34fe3bfec0
RemcosRAT
902b8354b83848d9ebffb587eae97814fc98b3a71c16c4b2b97d306cf02148a0
RemcosRAT
9c81fbbb72b5fc3035f58bf9b9f432b25ae185707c9d178c58486d567f782bd9
RemcosRAT
b5a1e827d96b4c4df1aad8363fe6bd7b4a83ace3f6e15b9689a0f2ddf74c8fb8
RemcosRAT
bdb57463a45449889f971cc8f16abf66f695b00dabf917280ec6e7389916a0a2
RemcosRAT
fcee9f932ecfa3a2c4fad741008915fc26ae9adc9820dbc12aa336dffc1337d8
RemcosRAT
+ 4'425 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost mcc rat
Link:
https://tria.ge/reports/221210-kd5wgahh7z/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
147.135.146.243:1960
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/3946d83d-0489-4c67-b117-6921d064b8e1
Unpacked files
SH256 hash:
bf35bbdf2bf735ff0ebdfe66ebb41c6bd8fd3178281741bfe3584676d29c7764
MD5 hash:
0de7208eb1fe5438133fd7a31d4446de
SHA1 hash:
f03df8d94973846b5acebe3465e19c3f4be3348e
Link:
https://www.unpac.me/results/79632006-2f1a-4055-8f73-0d07a56b0509/
SH256 hash:
04419fc47b5723c431e2ec7ca05477a5b0453fa1deaca86f7ff8d449c8811dd0
MD5 hash:
ab3a68a728b96930a02ad9928468a320
SHA1 hash:
dbdc9fb9612266be7a767a9e0809d6e8d0b98bec
Link:
https://www.unpac.me/results/79632006-2f1a-4055-8f73-0d07a56b0509/
SH256 hash:
c35b28add47c3bd814461f4a073fd0fe0ccc5cbd48db84faafe7914f83e2073c
MD5 hash:
2ae6ab33951254d5e0a77f0dac6e717c
SHA1 hash:
8f549decd450e500d94ce0d4602a252dfe5aac96
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/79632006-2f1a-4055-8f73-0d07a56b0509/
SH256 hash:
922915132a628d0050bf03a473370544dde3323627fb4adcba3f1ba869537e50
MD5 hash:
1ecb63625d636b0b8f8ebdece9fa80c3
SHA1 hash:
5623d5ad21fc63893011bae7e4709c51219fcc1c
Link:
https://www.unpac.me/results/79632006-2f1a-4055-8f73-0d07a56b0509/
SH256 hash:
4a7ec6d1287077faa821e84ae7c930e5100bf2f793ff2b803a430d7bc04b8744
MD5 hash:
a04d8e56be6540499cc1808813107552
SHA1 hash:
1ac35020e04bb2257d2289f9891c57219428f679
Link:
https://www.unpac.me/results/79632006-2f1a-4055-8f73-0d07a56b0509/
SH256 hash:
73f93753808172cbab4fbca1e6d8beb8426cf57d1ff000973864d79db32f1054
MD5 hash:
2242de17aea291378bff7deb3217cf45
SHA1 hash:
fdf4959f52d2221ccb84ebedfab9a597d1db3594
Link:
https://www.unpac.me/results/79632006-2f1a-4055-8f73-0d07a56b0509/
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/73f93753808172cbab4fbca1e6d8beb8426cf57d1ff000973864d79db32f1054

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

RemcosRAT

Executable exe 73f93753808172cbab4fbca1e6d8beb8426cf57d1ff000973864d79db32f1054

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/344890/

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