MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 743a42fa1745ca546bde00cab7c219c79b795ab0676a2d7478a655db7efa1fb2. 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: 16


Intelligence 16 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 743a42fa1745ca546bde00cab7c219c79b795ab0676a2d7478a655db7efa1fb2
SHA3-384 hash: 6f97035abe613a4b922bf06a28d3d2c331120f538552f789f0cb38fc8033a647399018d9ac2c642d5371d230467d009c
SHA1 hash: b270a8b20a838062ac883a42d4a7980a7093838f
MD5 hash: 25f4d53da0f965bf5e74463c48f121f7
humanhash: edward-steak-helium-lima
File name:PO-882020-2023.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'234'880 bytes
First seen:2023-10-11 18:59:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f48d9fecb191a3f4fc9501cb4eaddebd (3 x DBatLoader, 1 x RemcosRAT)
ssdeep 24576:sjZWxAnwlVih2Pvhs6E/Hs63YeXb6id8UYeDRXCgRHCZezBQu7FR5VNUAJOw637m:sjZDwe6Evs6oG6mYoYWQu6HwgP
Threatray 48 similar samples on MalwareBazaar
TLSH T1C9A5F167A2918D37F4323A784C1F92985C2AFD202D54EC8B7AD51E4C2B7A7903D39367
TrID 54.3% (.EXE) InstallShield setup (43053/19/16)
16.5% (.SCR) Windows screen saver (13097/50/3)
13.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.EXE) Win32 Executable (generic) (4505/5/1)
2.6% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 7e3c7068e8e8e062 (28 x DBatLoader, 6 x RemcosRAT, 4 x Formbook)
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
282
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
PO-882020-2023.exe
Verdict:
Malicious activity
Analysis date:
2023-10-11 19:03:22 UTC
Tags:
dbatloader rat remcos remote
Link:
https://app.any.run/tasks/8a7e91f3-b405-4a6a-a87f-03cf7d68e992

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
ModiLoader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/453381/
Detection(s):
SecuriteInfo.com.Win32.RATX-gen.3175.27905.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Reading critical registry keys
Creating a file in the %temp% directory
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Gathering data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control keylogger lolbin packed remcos replace
Link:
https://www.filescan.io/uploads/6526f0bfc51de9263e585079/reports/45c3b79d-36f1-4331-840b-d45140a33fc3/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/743a42fa1745ca546bde00cab7c219c79b795ab0676a2d7478a655db7efa1fb2
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:
IEInspector Software
Create hunting rule
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/40701ea1-42fc-4ac7-b88b-33d85743af04
Result
Threat name:
Remcos, DBatLoader
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1324014
Signature
Adds a directory exclusion to Windows Defender
Allocates many large memory junks
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to modify clipboard data
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
DLL side loading technique detected
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with a suspicious file extension
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)
Maps a DLL or memory area into another process
Sample uses process hollowing technique
Sigma detected: Remcos
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 / registry access)
Tries to steal Mail credentials (via file registry)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1324014 Sample: PO-882020-2023.exe Startdate: 11/10/2023 Architecture: WINDOWS Score: 100 70 web.fe.1drv.com 2->70 72 onedrive.live.com 2->72 74 3 other IPs or domains 2->74 92 Found malware configuration 2->92 94 Malicious sample detected (through community Yara rule) 2->94 96 Yara detected DBatLoader 2->96 98 7 other signatures 2->98 12 PO-882020-2023.exe 1 7 2->12         started        signatures3 process4 file5 58 C:\Users\Public\Libraries\netutils.dll, PE32+ 12->58 dropped 60 C:\Users\Public\Libraries\easinvoker.exe, PE32+ 12->60 dropped 62 C:\Users\Public\Libraries\Msrofuks.PIF, PE32 12->62 dropped 112 Drops PE files with a suspicious file extension 12->112 114 Writes to foreign memory regions 12->114 116 Allocates memory in foreign processes 12->116 118 2 other signatures 12->118 16 SndVol.exe 3 13 12->16         started        20 cmd.exe 1 12->20         started        signatures6 process7 dnsIp8 64 163.123.143.32, 42199, 49713, 49716 ILIGHT-NETUS Reserved 16->64 66 geoplugin.net 178.237.33.50, 49717, 80 ATOM86-ASATOM86NL Netherlands 16->66 76 Contains functionality to bypass UAC (CMSTPLUA) 16->76 78 Tries to steal Mail credentials (via file registry) 16->78 80 Contains functionalty to change the wallpaper 16->80 88 9 other signatures 16->88 22 SndVol.exe 16->22         started        25 SndVol.exe 16->25         started        27 SndVol.exe 2 16->27         started        29 backgroundTaskHost.exe 16->29         started        82 Uses ping.exe to sleep 20->82 84 Drops executables to the windows directory (C:\Windows) and starts them 20->84 86 Uses ping.exe to check the status of other devices and networks 20->86 31 easinvoker.exe 20->31         started        33 PING.EXE 1 20->33         started        36 xcopy.exe 2 20->36         started        39 8 other processes 20->39 signatures9 process10 dnsIp11 100 Tries to steal Instant Messenger accounts or passwords 22->100 102 Tries to steal Mail credentials (via file / registry access) 22->102 104 Tries to harvest and steal browser information (history, passwords, etc) 25->104 106 DLL side loading technique detected 29->106 41 cmd.exe 1 31->41         started        68 127.0.0.1 unknown unknown 33->68 54 C:\Windows \System32\easinvoker.exe, PE32+ 36->54 dropped 56 C:\Windows \System32\netutils.dll, PE32+ 39->56 dropped file12 signatures13 process14 signatures15 108 Adds a directory exclusion to Windows Defender 41->108 44 cmd.exe 1 41->44         started        47 conhost.exe 41->47         started        process16 signatures17 110 Adds a directory exclusion to Windows Defender 44->110 49 powershell.exe 25 44->49         started        process18 signatures19 90 DLL side loading technique detected 49->90 52 conhost.exe 49->52         started        process20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/743a42fa1745ca546bde00cab7c219c79b795ab0676a2d7478a655db7efa1fb2/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-10-11 14:44:37 UTC
File Type:
PE (Exe)
Extracted files:
102
AV detection:
15 of 38 (39.47%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=oq5ef6qxixffi266adflpqqzy6nxswvqm5vc25dyuzk5w7x2d6za._file
Verdict:
malicious
Similar samples:
287a8c784bc439337cd063735d6941eb0a40f2a9137b085bb86dd8d4aa14fcc9
RemcosRAT
33ca9923e204fe49ca08062c7799a0edd936be726f89e661756e058677eb4a96
RemcosRAT
63946c04c77ccb8f6f48057f0cd4495f7751192b0016c99669a0b6aea330d538
RemcosRAT
65419d777e93745b9feeee9969ef2a1fbd0049f816bda9053a96d2daedb5074e
RemcosRAT
6d2399b13a176bbb2b4319d7fc405de5078f1ded3bb0653f8111e79a3f0ab885
RemcosRAT
ac2fe475a33e913c4173ad6af1fcd8acd6e51fd66ac6c65c48db29d680521171
RemcosRAT
b706a171ed0c9db2b82a3fb16390e8f2716bd256f79182fdd8a76291a1078a5e
RemcosRAT
d3f1d0c0e37e33ad600d209bd43d61a3e94b6bd2a5d87b63c53184d070ee1680
RemcosRAT
+ 38 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:remcos botnet:remotehost persistence rat trojan
Link:
https://tria.ge/reports/231011-xnm5maha98/
Behaviour
Enumerates system info in registry
Runs ping.exe
Script User-Agent
Suspicious use of WriteProcessMemory
Program crash
Adds Run key to start application
ModiLoader Second Stage
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
ModiLoader, DBatLoader
Remcos
Malware Config
C2 Extraction:
127.0.0.1:43991
127.0.0.1:42199
163.123.143.32:42199
163.123.143.32:43991
Unpacked files
SH256 hash:
1505c5ba45ff1e2cf8dd18cac827ded51f61a25fc047a8b67558f57b2532165a
MD5 hash:
e1ff35035eb933df78d329a437e7b522
SHA1 hash:
703bc95ca1ec1d1f172af630352b26d96515ce72
Link:
https://www.unpac.me/results/d8c5785f-4db9-40ba-8bff-2e6d84d531fe/
SH256 hash:
7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
MD5 hash:
c116d3604ceafe7057d77ff27552c215
SHA1 hash:
452b14432fb5758b46f2897aeccd89f7c82a727d
Link:
https://www.unpac.me/results/d8c5785f-4db9-40ba-8bff-2e6d84d531fe/
SH256 hash:
d64f2ff0a03c4e17377c959ca36eab3048f45355ce5beb8e84db05a93f0da105
MD5 hash:
d92af03c9977427ed91d9fa4a9ecd6aa
SHA1 hash:
27ed09b40354e77faf5037f3f74531ef2d29fcb2
Detections:
win_dbatloader_g1
Create hunting rule
Link:
https://www.unpac.me/results/d8c5785f-4db9-40ba-8bff-2e6d84d531fe/
Parent samples :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 hash:
743a42fa1745ca546bde00cab7c219c79b795ab0676a2d7478a655db7efa1fb2
MD5 hash:
25f4d53da0f965bf5e74463c48f121f7
SHA1 hash:
b270a8b20a838062ac883a42d4a7980a7093838f
Link:
https://www.unpac.me/results/d8c5785f-4db9-40ba-8bff-2e6d84d531fe/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/743a42fa1745/report/overview.html
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/743a42fa1745ca546bde00cab7c219c79b795ab0676a2d7478a655db7efa1fb2

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:BobSoftMiniDelphiBoBBobSoft
Create hunting rule
Author:malware-lu
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Malspam

RemcosRAT

Executable exe 743a42fa1745ca546bde00cab7c219c79b795ab0676a2d7478a655db7efa1fb2

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/453381/

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