MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 935a99d2fbb4053dadbfe9da227f4019d0807785bb193e56e719b7583f49b1ea. 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: 19


Intelligence 19 IOCs YARA 4 File information Comments
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SHA256 hash: 935a99d2fbb4053dadbfe9da227f4019d0807785bb193e56e719b7583f49b1ea
SHA3-384 hash: 38b311e2947b494dcd676be3a58924d30d5d1a04c34d6de67ec286f6276e6119ea5c07159c6492c1a14b8362aa5d1699
SHA1 hash: de67506c08d6fef79fff815e27cda68403980fc9
MD5 hash: b8d56a76c20f7112dad67dcf0ed7db76
humanhash: william-charlie-item-eighteen
File name:AY908774.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:966'656 bytes
First seen:2024-10-08 17:20:46 UTC
Last seen:2024-10-08 18:45:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:snC0mUwAF27PpvOvGrAl+5tbmzaCKqk0eua+ANHNAtFDQEa5g3M5JQCjXPpXylhd:KmUXFYpRrZ55jCKq/etMeDgc5PjN6cE
Threatray 4'485 similar samples on MalwareBazaar
TLSH T14E2512A81259D113C81667F94DA1F0B517786EDEB602E317AFD86DEBB97BF404C08283
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
404
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
AY908774.exe
Verdict:
Malicious activity
Analysis date:
2024-10-08 17:26:57 UTC
Tags:
rat remcos evasion
Link:
https://app.any.run/tasks/cafb633e-bc70-4fec-bbef-80a00ca2bb08

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.7716.861.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67063bb0f936b5621b0bafcf
Tags:
Powershell Remcos
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed remcos
Link:
https://www.filescan.io/uploads/67056a000439dbe39ca74ead/reports/3183f389-e7f6-4e81-8112-4468ebf7787b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/935a99d2fbb4053dadbfe9da227f4019d0807785bb193e56e719b7583f49b1ea
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/0225ef9d-e1ac-4efc-a7fe-f59786e2cfd7
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1529227
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Loading BitLocker PowerShell Module
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: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1529227 Sample: AY908774.exe Startdate: 08/10/2024 Architecture: WINDOWS Score: 100 49 dpm-sael.com 2->49 51 geoplugin.net 2->51 61 Suricata IDS alerts for network traffic 2->61 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 11 other signatures 2->67 8 AY908774.exe 7 2->8         started        12 RhFlTiIjgELLJp.exe 5 2->12         started        signatures3 process4 file5 39 C:\Users\user\AppData\...\RhFlTiIjgELLJp.exe, PE32 8->39 dropped 41 C:\...\RhFlTiIjgELLJp.exe:Zone.Identifier, ASCII 8->41 dropped 43 C:\Users\user\AppData\Local\...\tmp8396.tmp, XML 8->43 dropped 45 C:\Users\user\AppData\...\AY908774.exe.log, ASCII 8->45 dropped 69 Uses schtasks.exe or at.exe to add and modify task schedules 8->69 71 Adds a directory exclusion to Windows Defender 8->71 14 AY908774.exe 3 16 8->14         started        19 powershell.exe 23 8->19         started        21 powershell.exe 23 8->21         started        23 schtasks.exe 1 8->23         started        73 Multi AV Scanner detection for dropped file 12->73 75 Contains functionality to bypass UAC (CMSTPLUA) 12->75 77 Contains functionalty to change the wallpaper 12->77 79 6 other signatures 12->79 25 schtasks.exe 12->25         started        27 RhFlTiIjgELLJp.exe 12->27         started        signatures6 process7 dnsIp8 53 dpm-sael.com 64.176.178.205, 2017, 49715 ALABANZA-BALTUS United States 14->53 55 geoplugin.net 178.237.33.50, 49731, 80 ATOM86-ASATOM86NL Netherlands 14->55 47 C:\ProgramData\remcos\logs.dat, data 14->47 dropped 57 Installs a global keyboard hook 14->57 59 Loading BitLocker PowerShell Module 19->59 29 WmiPrvSE.exe 19->29         started        31 conhost.exe 19->31         started        33 conhost.exe 21->33         started        35 conhost.exe 23->35         started        37 conhost.exe 25->37         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/935a99d2fbb4053dadbfe9da227f4019d0807785bb193e56e719b7583f49b1ea
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/935a99d2fbb4053dadbfe9da227f4019d0807785bb193e56e719b7583f49b1ea/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-10-08 16:10:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=snnjtux3wqct3ln75hnce72adhiia54fxmmt4vxhdg3vqp2jwhva._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
6fb1afbb72d328bdaca9c019107c5ce12c81bfbabac1f1b7426db29ffec79f96
RemcosRAT
7509f9497471ef5ef9fb8cb4decb92af7f592b2e760156d1b4b4c1d7812ca040
RemcosRAT
e05cc67d73ac305af568bad10b09f26ec5641fee5a29cfc4b20d9efc6b2581b0
RemcosRAT
e91003d89bef3f5c6bdfb6a554ca0cf7e05d209cf0184cb545f84ce1a3d04159
RemcosRAT
error
RemcosRAT
f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607
RemcosRAT
+ 4'475 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:mekus discovery execution rat
Link:
https://tria.ge/reports/241008-vwzsaazfqc/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Remcos
Malware Config
C2 Extraction:
dpm-sael.com:2017
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d279d0c1-6e8b-4045-a4bb-e42697b3d56c
Unpacked files
SH256 hash:
77d2c714dc07122dc5ca1a416b9054f730b4ee2b974d68beb487899f15c0c00f
MD5 hash:
ab36705ec80638adbb17fd13560e9748
SHA1 hash:
8d012338492d472647f69057ff0972e96eef9a0b
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/85d217c5-d8d1-4d35-b82c-e22210722191/
SH256 hash:
04d7477c03418c7e4de3dbe344390866ad623bcb7f95347fba918d409289383b
MD5 hash:
4bf132cd765bc40f5a57698f2f11f336
SHA1 hash:
41a1b5de62d70e137b6baf15de581ddbb6aa32ab
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
Link:
https://www.unpac.me/results/85d217c5-d8d1-4d35-b82c-e22210722191/
Parent samples :
e05cc67d73ac305af568bad10b09f26ec5641fee5a29cfc4b20d9efc6b2581b0
7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9
1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4
d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc
700abeeb6388de45b2e0c175f6de719df739b14cfd0500f3fce94e95d0a9f127
935a99d2fbb4053dadbfe9da227f4019d0807785bb193e56e719b7583f49b1ea
SH256 hash:
682c261fcd08c676ef231f46eac1c054c8df17522846b9e4adbafb62e8482dab
MD5 hash:
5a6cead6de3340dd9e0b16d599e5d1f5
SHA1 hash:
00e25f93284ff0d2493c6df3a596891d0848399e
Link:
https://www.unpac.me/results/85d217c5-d8d1-4d35-b82c-e22210722191/
SH256 hash:
935a99d2fbb4053dadbfe9da227f4019d0807785bb193e56e719b7583f49b1ea
MD5 hash:
b8d56a76c20f7112dad67dcf0ed7db76
SHA1 hash:
de67506c08d6fef79fff815e27cda68403980fc9
Link:
https://www.unpac.me/results/85d217c5-d8d1-4d35-b82c-e22210722191/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/935a99d2fbb4/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/935a99d2fbb4053dadbfe9da227f4019d0807785bb193e56e719b7583f49b1ea

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:NET
Create hunting rule
Author:malware-lu
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 935a99d2fbb4053dadbfe9da227f4019d0807785bb193e56e719b7583f49b1ea

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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