MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c35fb71c0a41185e8455def562dbbf6603445b85b6ec996a9320c2e115ab217b. 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 10 File information Comments
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SHA256 hash: c35fb71c0a41185e8455def562dbbf6603445b85b6ec996a9320c2e115ab217b
SHA3-384 hash: 83601d60d9e8a9fb96772967891f95755dbac9ac4c32f2ee489aa39226445c204cdb6f3a70bb16ceefacf5827471717c
SHA1 hash: 3bb89517a26ed5d3758e1413262c568ffd4f67d7
MD5 hash: 9681449329af2fdd9ecf0eafa4859704
humanhash: edward-nevada-december-lactose
File name:SecuriteInfo.com.Win32.DropperX-gen.21486.24443
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:128'512 bytes
First seen:2023-01-10 04:28:10 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 384:TnwTrbwu5Ln/LA6qpNntj2VvTz/VP1QWZTgkFtBBJ7B2VjBb9wwwwwwwwwwwwwwA:TnwTXjzEtq/VP1QWlFF/7B27L
TLSH T1E0C3A602DC828517D6E5ACFA2202598CC1FB5FC2636F926D49F970FABC712E751D2E12
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 35cc88acb6969ee9 (1 x RemcosRAT)
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
188
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.Win32.DropperX-gen.21486.24443
Verdict:
Malicious activity
Analysis date:
2023-01-10 04:29:12 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/7b52538b-0246-4656-95cd-ff1c42ab0fc8

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/351367/
Detection(s):
SecuriteInfo.com.Win32.DropperX-gen.21486.24443.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/63bce98ea66e2eb2973816e2/reports/d588016c-4258-488d-bf4e-665d605683be/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/1a96cc99-7e1d-4f19-a91e-01a96344376c
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1148460
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
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 submitted file
Sigma detected: Remcos
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 781192 Sample: SecuriteInfo.com.Win32.Drop... Startdate: 10/01/2023 Architecture: WINDOWS Score: 100 42 obologs.work.gd 2->42 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for URL or domain 2->60 62 Multi AV Scanner detection for submitted file 2->62 64 6 other signatures 2->64 8 SecuriteInfo.com.Win32.DropperX-gen.21486.24443.exe 16 7 2->8         started        13 Vjbknfzgrf.exe 14 4 2->13         started        15 Vjbknfzgrf.exe 3 2->15         started        signatures3 process4 dnsIp5 44 192.168.2.1 unknown unknown 8->44 46 onedrive.live.com 8->46 52 2 other IPs or domains 8->52 34 C:\Users\user\AppData\...\Vjbknfzgrf.exe, PE32 8->34 dropped 36 C:\Users\...\Vjbknfzgrf.exe:Zone.Identifier, ASCII 8->36 dropped 38 SecuriteInfo.com.W...21486.24443.exe.log, ASCII 8->38 dropped 66 Encrypted powershell cmdline option found 8->66 68 Writes to foreign memory regions 8->68 70 Injects a PE file into a foreign processes 8->70 17 aspnet_compiler.exe 2 8->17         started        20 powershell.exe 16 8->20         started        48 onedrive.live.com 13->48 54 2 other IPs or domains 13->54 72 Machine Learning detection for dropped file 13->72 22 powershell.exe 13->22         started        24 aspnet_compiler.exe 13->24         started        50 onedrive.live.com 15->50 56 2 other IPs or domains 15->56 26 powershell.exe 15->26         started        file6 signatures7 process8 dnsIp9 40 obologs.work.gd 185.156.175.35, 34346, 49710, 49711 M247GB Romania 17->40 28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        32 conhost.exe 26->32         started        process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c35fb71c0a41185e8455def562dbbf6603445b85b6ec996a9320c2e115ab217b/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-01-10 04:29:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
21 of 39 (53.85%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ynp3ohakiemf5bcv332wfw57mybuiw4fw3wjs2utedbocfnlef5q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Link:
https://tria.ge/reports/230110-e38e1acc95/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
obologs.work.gd:34346
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/91e69e54-baf1-4379-8e22-92c3cd82eca3
Unpacked files
SH256 hash:
c35fb71c0a41185e8455def562dbbf6603445b85b6ec996a9320c2e115ab217b
MD5 hash:
9681449329af2fdd9ecf0eafa4859704
SHA1 hash:
3bb89517a26ed5d3758e1413262c568ffd4f67d7
Link:
https://www.unpac.me/results/33fdaf06-5bca-4d46-a6e4-11b6c135685c/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c35fb71c0a41/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/c35fb71c0a41185e8455def562dbbf6603445b85b6ec996a9320c2e115ab217b

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:AsyncRat_Detection_Dec_2022
Create hunting rule
Author:Potatech
Description:AsyncRat
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:pe_imphash
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/351367/

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