MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1324fa6536148b20c0452f0d0d3930c77ca32d2abef6bae3f2019931d4a9517c. 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: 15


Intelligence 15 IOCs YARA 29 File information Comments
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SHA256 hash: 1324fa6536148b20c0452f0d0d3930c77ca32d2abef6bae3f2019931d4a9517c
SHA3-384 hash: dc87f8eb70984f51ad38d8a0bc1cea79c5a39fdc498fc9dfdc6a4d5cec50453e640c030fb147270ab9d31a2bcf783a63
SHA1 hash: 96eba41691ef92d473639763ec24d10ca70a411d
MD5 hash: 0884e4d19d0cf7fc856efd0abeee2e16
humanhash: carolina-indigo-sixteen-asparagus
File name:FAT09865678900.bat
Download: download sample
Signature RemcosRAT
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File size:373'272 bytes
First seen:2023-11-22 22:25:26 UTC
Last seen:2023-11-23 00:45:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:QBlL/TauirWZ6fw0JWEf7Th8PhTJrx6B1CxqmahJ02GrRELOKoN+sySfLoejoq:iJauCBfw0Jff7SPnI7CQmaw2GtEyPNye
Threatray 3'120 similar samples on MalwareBazaar
TLSH T16C842326B2D1C1EBC5EA4A703A6BF324D577C7064A0064CF4BF44F2B2579AC5D10EEA6
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter Anonymous
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
335
Origin country :
CH CH
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/459775/
Detection(s):
SecuriteInfo.com.Trojan.Loader.1550.28444.13930.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control installer lolbin masquerade overlay packed remcos shell32
Link:
https://www.filescan.io/uploads/655e7fffbb9ba3018ba1a50c/reports/198316f0-cf45-4ec3-bb07-fb9f7b262dca/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/1324fa6536148b20c0452f0d0d3930c77ca32d2abef6bae3f2019931d4a9517c
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c3b572e1-5033-4ff3-988a-7ecb67c14cd7
Result
Threat name:
Remcos
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Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1346635
Signature
Antivirus detection for URL or domain
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
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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
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)
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: 1346635 Sample: FAT09865678900.bat.exe Startdate: 22/11/2023 Architecture: WINDOWS Score: 100 40 geoplugin.net 2->40 54 Snort IDS alert for network traffic 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 8 other signatures 2->60 9 FAT09865678900.bat.exe 17 2->9         started        12 qmvfajfoxtd.exe 2->12         started        15 qmvfajfoxtd.exe 2->15         started        signatures3 process4 file5 38 C:\Users\user\AppData\Local\...\cpqflwztt.exe, PE32 9->38 dropped 17 cpqflwztt.exe 1 2 9->17         started        64 Multi AV Scanner detection for dropped file 12->64 66 Machine Learning detection for dropped file 12->66 68 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 12->68 21 qmvfajfoxtd.exe 12->21         started        70 Maps a DLL or memory area into another process 15->70 23 qmvfajfoxtd.exe 15->23         started        signatures6 process7 file8 36 C:\Users\user\AppData\...\qmvfajfoxtd.exe, PE32 17->36 dropped 46 Multi AV Scanner detection for dropped file 17->46 48 Contains functionality to bypass UAC (CMSTPLUA) 17->48 50 Detected unpacking (changes PE section rights) 17->50 52 11 other signatures 17->52 25 cpqflwztt.exe 3 13 17->25         started        signatures9 process10 dnsIp11 42 107.175.229.139, 49729, 49730, 8087 AS-COLOCROSSINGUS United States 25->42 44 geoplugin.net 178.237.33.50, 49731, 80 ATOM86-ASATOM86NL Netherlands 25->44 62 Maps a DLL or memory area into another process 25->62 29 cpqflwztt.exe 1 25->29         started        32 cpqflwztt.exe 1 25->32         started        34 cpqflwztt.exe 2 25->34         started        signatures12 process13 signatures14 72 Tries to steal Instant Messenger accounts or passwords 29->72 74 Tries to steal Mail credentials (via file / registry access) 29->74 76 Tries to harvest and steal browser information (history, passwords, etc) 32->76
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1324fa6536148b20c0452f0d0d3930c77ca32d2abef6bae3f2019931d4a9517c
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1324fa6536148b20c0452f0d0d3930c77ca32d2abef6bae3f2019931d4a9517c/
Threat name:
Win32.Trojan.NSISInject
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Status:
Malicious
First seen:
2023-11-22 12:31:40 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cmspuzjwcsfsbqcff4gq2ojqy56kgljkx33lvy7sagmtdvfjkf6a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1c8d1bd43b0adaeed79d1e91fb3af5d840e9c43b15297dd347f61361ccafb012
RemcosRAT
240078f7aea5b0713ce09bf10b143142d51c35d3e08b852085bf975bfb590f02
RemcosRAT
2c4da8b973802b01ab09c69326888143e4c1c31a11730b3fad9bb868ddfc8e04
RemcosRAT
653f628893de874793983dc90b8868c7e56229e28f7eaf79d615c55490179411
RemcosRAT
659af6c54d31cf15cdca40c29959c160e47e65254f178661f98807b649fdb596
RemcosRAT
6a50489f6eea933eebe83f8a675a6f639bf694e2cf3cc151ce76f6e6d61c2b1d
RemcosRAT
8eee3203e37325544b2b3461b11410bc8084002f3853fcc243d3148050af8b0d
RemcosRAT
+ 3'110 additional samples on MalwareBazaar
Result
Malware family:
remcos
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Score:
  10/10
Tags:
family:remcos botnet:john-pc collection persistence rat spyware stealer upx
Link:
https://tria.ge/reports/231122-2chg8aff6x/
Behaviour
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
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
UPX packed file
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
107.175.229.139:8087
Unpacked files
SH256 hash:
7ae303bc34f82d97ae7436d92439c4ab363e9c262f425047a64fc6fbca11a7b9
MD5 hash:
c196184efe5bd766ee6f980e17e1f841
SHA1 hash:
84a74fdd8a542b286ea00ef2dc6642412b567538
Link:
https://www.unpac.me/results/77ff09b9-7dfe-4a7d-a35b-eeeaa4fe5da1/
SH256 hash:
1324fa6536148b20c0452f0d0d3930c77ca32d2abef6bae3f2019931d4a9517c
MD5 hash:
0884e4d19d0cf7fc856efd0abeee2e16
SHA1 hash:
96eba41691ef92d473639763ec24d10ca70a411d
Link:
https://www.unpac.me/results/77ff09b9-7dfe-4a7d-a35b-eeeaa4fe5da1/
Malware family:
Remcos
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1324fa653614/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/1324fa6536148b20c0452f0d0d3930c77ca32d2abef6bae3f2019931d4a9517c

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
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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
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Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
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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: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:TeslaCryptPackedMalware
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:UPXv20MarkusLaszloReiser
Create hunting rule
Author:malware-lu
Rule name:upx_3
Create hunting rule
Author:Kevin Falcoz
Description:UPX 3.X
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 1324fa6536148b20c0452f0d0d3930c77ca32d2abef6bae3f2019931d4a9517c

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/459775/

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