MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 530899098de9bc4a8be22abaffba4a79fd215d0cd06337bb872421dffe6598ad. 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 29 File information Comments
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SHA256 hash: 530899098de9bc4a8be22abaffba4a79fd215d0cd06337bb872421dffe6598ad
SHA3-384 hash: e2229d5d68626f94792bf80e6247f83a8a794d61e94144104710100652d676ccd1690be3dd6c1996fa4d003f0242faf5
SHA1 hash: 229f3497e9da4f9cfe75aa40d5213eb1f8c98f0d
MD5 hash: f3f894db048b02d6865a735d55c3f68e
humanhash: happy-mobile-potato-whiskey
File name:FHAM09865400090.bat
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:366'094 bytes
First seen:2023-11-27 10:05:33 UTC
Last seen:2023-11-27 11:53:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:ABlL/90Bg3mOMotHdXxH+6dJBd87rRe4ayEr0NmlF2DwxJerScHu2oFqFC77V02:yn0Bg3mONVdhH+6fGBayEXlcDAJn2oL3
Threatray 483 similar samples on MalwareBazaar
TLSH T15874237D53D00CF3D40389379BDB91A5E23AAA138661109FE7605E763D3D6D3E218B68
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 lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
319
Origin country :
DE DE
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/460597/
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.15593.13384.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Setting a keyboard event handler
Sending a custom TCP request
DNS request
Creating a file
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 by context flags manipulation
Unauthorized injection to a recently created process
Stealing user critical data
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control installer lolbin masquerade overlay packed remcos shell32
Link:
https://www.filescan.io/uploads/65646a0f2efa450749a8dabe/reports/c4ff6d9d-0f8d-4537-9ac4-3fc59e01a4f8/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/530899098de9bc4a8be22abaffba4a79fd215d0cd06337bb872421dffe6598ad
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/d32924b7-fe6d-46cf-acab-2dab57b00e36
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/1348419
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
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Installs a global keyboard hook
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 domain / URL
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: 1348419 Sample: FHAM09865400090.bat.exe Startdate: 27/11/2023 Architecture: WINDOWS Score: 100 43 geoplugin.net 2->43 57 Snort IDS alert for network traffic 2->57 59 Multi AV Scanner detection for domain / URL 2->59 61 Found malware configuration 2->61 63 9 other signatures 2->63 9 FHAM09865400090.bat.exe 17 2->9         started        12 eajfn.exe 2->12         started        15 eajfn.exe 2->15         started        signatures3 process4 file5 39 C:\Users\user\AppData\Local\...\fujtlzeyc.exe, PE32 9->39 dropped 17 fujtlzeyc.exe 1 2 9->17         started        69 Multi AV Scanner detection for dropped file 12->69 71 Machine Learning detection for dropped file 12->71 73 Maps a DLL or memory area into another process 12->73 21 eajfn.exe 12->21         started        23 eajfn.exe 15->23         started        signatures6 process7 file8 37 C:\Users\user\AppData\Roaming\...\eajfn.exe, PE32 17->37 dropped 49 Multi AV Scanner detection for dropped file 17->49 51 Contains functionality to bypass UAC (CMSTPLUA) 17->51 53 Tries to steal Mail credentials (via file registry) 17->53 55 10 other signatures 17->55 25 fujtlzeyc.exe 3 16 17->25         started        signatures9 process10 dnsIp11 45 107.175.229.139, 49707, 49708, 8087 AS-COLOCROSSINGUS United States 25->45 47 geoplugin.net 178.237.33.50, 49709, 80 ATOM86-ASATOM86NL Netherlands 25->47 41 C:\ProgramData\remcos\logs.dat, data 25->41 dropped 65 Maps a DLL or memory area into another process 25->65 67 Installs a global keyboard hook 25->67 30 fujtlzeyc.exe 1 25->30         started        33 fujtlzeyc.exe 1 25->33         started        35 fujtlzeyc.exe 2 25->35         started        file12 signatures13 process14 signatures15 75 Tries to steal Instant Messenger accounts or passwords 30->75 77 Tries to steal Mail credentials (via file / registry access) 30->77 79 Tries to harvest and steal browser information (history, passwords, etc) 33->79
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/530899098de9bc4a8be22abaffba4a79fd215d0cd06337bb872421dffe6598ad/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-11-27 10:06:05 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kmejscmn5g6evc7cfk5p7oskph6scxim2brtpo4heqq577tftcwq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1324fa6536148b20c0452f0d0d3930c77ca32d2abef6bae3f2019931d4a9517c
RemcosRAT
240078f7aea5b0713ce09bf10b143142d51c35d3e08b852085bf975bfb590f02
RemcosRAT
24dd50e989e9496c6833faea5c062a84aa800fd176df7c737d3d3999400cf66e
RemcosRAT
659af6c54d31cf15cdca40c29959c160e47e65254f178661f98807b649fdb596
RemcosRAT
e8a357b793e4a0577c451067faaecca2c5ea1746d91ef3a7120020aabc5ec7bf
RemcosRAT
+ 473 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection persistence rat spyware stealer upx
Link:
https://tria.ge/reports/231127-l43pgafg9w/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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:
e66cc15fca8d7f60e5fa98b2357b1c2749b9daf38c32b4337c12187fc587051b
MD5 hash:
0e7f37e5d7679d2c1081cde67d5b41b3
SHA1 hash:
0b924d2f610630d728420b9c9628207fe5676495
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/274499c8-d621-4515-b446-c96f2f80c1ca/
SH256 hash:
adcaec04c24cabc30f7159d916466b35f922af66563e1c03be5e1428e4740886
MD5 hash:
f0bf970c832560bbfd26b9b32ecc9f7f
SHA1 hash:
6ab511058fca7a8a8c8109e1a875bca2ec040326
Link:
https://www.unpac.me/results/274499c8-d621-4515-b446-c96f2f80c1ca/
SH256 hash:
530899098de9bc4a8be22abaffba4a79fd215d0cd06337bb872421dffe6598ad
MD5 hash:
f3f894db048b02d6865a735d55c3f68e
SHA1 hash:
229f3497e9da4f9cfe75aa40d5213eb1f8c98f0d
Link:
https://www.unpac.me/results/274499c8-d621-4515-b446-c96f2f80c1ca/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/530899098de9/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/530899098de9bc4a8be22abaffba4a79fd215d0cd06337bb872421dffe6598ad

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: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 530899098de9bc4a8be22abaffba4a79fd215d0cd06337bb872421dffe6598ad

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/460597/

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