MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 25ad65700d96ab435cbe3070cc5189ade55537add318b907b57fc27b6dcf7110. 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: 18


Intelligence 18 IOCs YARA 28 File information Comments
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SHA256 hash: 25ad65700d96ab435cbe3070cc5189ade55537add318b907b57fc27b6dcf7110
SHA3-384 hash: befea5f329b421fd59fdbaa27367c43c1b9dfb5d4c1babe26c19f6c4233833d4d486d84a33edab51c04530771c2931be
SHA1 hash: b5eb9bc9fce502e296762ad93cc3d5c4410df8fa
MD5 hash: 123d714786c87a95699bd0e09b54ce9a
humanhash: video-bulldog-hotel-pizza
File name:PE09876500900000.bat
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:868'864 bytes
First seen:2023-11-22 20:50:10 UTC
Last seen:2023-11-22 22:28:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:9uy8oiKcDtI5kT9w7zqTyJ043Ue2lRugAJrAVdtpDf2DqKXdS7vTu3LevhEc58xi:9uFgGtI5kWg9e2lRTAGVTl2W84i7evj
Threatray 470 similar samples on MalwareBazaar
TLSH T13A0523471A010ABBD368DFB7227FB1374BB4F826E45AC1154AC85E5E7469F10872A0F7
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)
File icon (PE):PE icon
dhash icon 15cce4f4d0d8cc53 (12 x Formbook, 5 x AgentTesla, 3 x RemcosRAT)
Reporter Anonymous
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
353
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
PE09876500900000.bat
Verdict:
Malicious activity
Analysis date:
2023-11-22 20:50:54 UTC
Tags:
rat remcos stealer
Link:
https://app.any.run/tasks/ee7dac28-01df-40f2-92c0-465fc7984352

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/459761/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.59820.12004.31548.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
DNS request
Sending an HTTP GET request
Reading critical registry keys
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed remcos
Link:
https://www.filescan.io/uploads/655e69bfc92af24594b24b25/reports/f928a768-7aa4-4131-ba99-27860c40a1c3/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/25ad65700d96ab435cbe3070cc5189ade55537add318b907b57fc27b6dcf7110
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/ec828e97-82af-41c6-b3e9-58a3aa739cb1
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1346605
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
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
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
Snort IDS alert for network traffic
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
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: 1346605 Sample: PE09876500900000.bat.exe Startdate: 22/11/2023 Architecture: WINDOWS Score: 100 49 geoplugin.net 2->49 55 Snort IDS alert for network traffic 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 12 other signatures 2->61 8 PE09876500900000.bat.exe 7 2->8         started        12 uKAAVT.exe 5 2->12         started        signatures3 process4 file5 45 C:\Users\user\AppData\Roaming\uKAAVT.exe, PE32 8->45 dropped 47 C:\Users\user\AppData\Local\...\tmp53CC.tmp, XML 8->47 dropped 63 Tries to steal Mail credentials (via file registry) 8->63 65 Uses schtasks.exe or at.exe to add and modify task schedules 8->65 67 Contains functionality to modify clipboard data 8->67 75 2 other signatures 8->75 14 PE09876500900000.bat.exe 3 13 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 22 8->20         started        22 schtasks.exe 1 8->22         started        69 Multi AV Scanner detection for dropped file 12->69 71 Contains functionality to bypass UAC (CMSTPLUA) 12->71 73 Contains functionalty to change the wallpaper 12->73 77 5 other signatures 12->77 24 schtasks.exe 12->24         started        26 uKAAVT.exe 12->26         started        signatures6 process7 dnsIp8 51 107.175.229.139, 49732, 49733, 8087 AS-COLOCROSSINGUS United States 14->51 53 geoplugin.net 178.237.33.50, 49734, 80 ATOM86-ASATOM86NL Netherlands 14->53 85 Maps a DLL or memory area into another process 14->85 28 PE09876500900000.bat.exe 14->28         started        31 PE09876500900000.bat.exe 14->31         started        33 PE09876500900000.bat.exe 14->33         started        35 PE09876500900000.bat.exe 14->35         started        37 conhost.exe 18->37         started        39 conhost.exe 20->39         started        41 conhost.exe 22->41         started        43 conhost.exe 24->43         started        signatures9 process10 signatures11 79 Tries to steal Instant Messenger accounts or passwords 28->79 81 Tries to steal Mail credentials (via file / registry access) 28->81 83 Tries to harvest and steal browser information (history, passwords, etc) 31->83
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/25ad65700d96ab435cbe3070cc5189ade55537add318b907b57fc27b6dcf7110
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/25ad65700d96ab435cbe3070cc5189ade55537add318b907b57fc27b6dcf7110/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-11-22 02:39:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ewwwk4ans2vugxf6gbymyumjvxsvkn5n2mmlsb5vp7bhw3opoeia._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1b06a2398764f23e43dd171d49500cdaa3251ea195ce2c6fc4dfc1067955bf3e
RemcosRAT
25ad65700d96ab435cbe3070cc5189ade55537add318b907b57fc27b6dcf7110
RemcosRAT
483d7f7379d43c9fb3effb226cb58a443f48105bda3a9a6310a76729d7c1b3bd
RemcosRAT
4f4a8ff83672c8134227742b12e228e512d32e3c3dabb8e96bdc6b28628d3d26
RemcosRAT
741b7b64f2a1eb8aca439c9a4c304a90fba48c41c787114b8aced6c3102a5568
RemcosRAT
877371d8ae10433714781fc8187b21a9bd55e01738d1e701603118d1e2b89944
RemcosRAT
db4520e67b7388d613d17e7a0758192feda02f2951e3a3a2f5bd4f2c55efd7a2
RemcosRAT
+ 460 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:john-pc collection rat spyware stealer
Link:
https://tria.ge/reports/231122-zm5pdsee96/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Checks computer location settings
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
107.175.229.139:8087
Unpacked files
SH256 hash:
3fc435481d7ef0079bdad4dd86185e61a5092a5df4a3e17a75266cf283effaa1
MD5 hash:
ead80ad88662af6f37f0c49fe6e3fb44
SHA1 hash:
dbeb4019c7337347d1c6d0913c9249021cafd849
Link:
https://www.unpac.me/results/c6a2cf59-1d3f-47ac-a716-66cd4b09786f/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/c6a2cf59-1d3f-47ac-a716-66cd4b09786f/
SH256 hash:
58573929bfba5e203795bdbb97dd8151b07c3408cabaac7a4bc1c1f497180df5
MD5 hash:
69e0082920ede16ca2255a825c6219c4
SHA1 hash:
c92bce2dc90dea8bd1706652425711568565c1a4
Link:
https://www.unpac.me/results/c6a2cf59-1d3f-47ac-a716-66cd4b09786f/
SH256 hash:
43433ed63cdb88981fcdc522de7f71a700d59490aaa3d4fcd06f4249791747b2
MD5 hash:
c45bd2b3fa3c078ab7cbbabc6014967d
SHA1 hash:
18be0277557625bddf323b3c30cc3359595e74ce
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/c6a2cf59-1d3f-47ac-a716-66cd4b09786f/
Parent samples :
25ad65700d96ab435cbe3070cc5189ade55537add318b907b57fc27b6dcf7110
72c1f9955cf049df7f685398f377b596adebbd1f79110fbd9771157913a6b80e
7d0094638be40437e64bb472a23d920cde1751b266427028175929b3507bacf5
d02b26fd892d539b931cc6949e1faad954e1febb629d5398a44ba252f7814e87
SH256 hash:
25ad65700d96ab435cbe3070cc5189ade55537add318b907b57fc27b6dcf7110
MD5 hash:
123d714786c87a95699bd0e09b54ce9a
SHA1 hash:
b5eb9bc9fce502e296762ad93cc3d5c4410df8fa
Link:
https://www.unpac.me/results/c6a2cf59-1d3f-47ac-a716-66cd4b09786f/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/25ad65700d96/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/25ad65700d96ab435cbe3070cc5189ade55537add318b907b57fc27b6dcf7110

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:QbotStuff
Create hunting rule
Author:anonymous
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:TeslaCryptPackedMalware
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research
Rule name:yara_template
Create hunting rule

File information

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

Malspam

RemcosRAT

Executable exe 25ad65700d96ab435cbe3070cc5189ade55537add318b907b57fc27b6dcf7110

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/459761/

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