MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f853dbba694560317f4d0673da02ae77afce25d7eb4dc62f02ed0f5c750ce861. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f853dbba694560317f4d0673da02ae77afce25d7eb4dc62f02ed0f5c750ce861
SHA3-384 hash: ce6c048c896c2f3da1c7a02dbe607a90ba9206a3157dff3bd500a44098779cd0e6b3db864e138a19ae198446faf8c078
SHA1 hash: 7ea6bbc7ec194f2b38abba2b759574e801a824f9
MD5 hash: 5d5e76e709b1df312317562127d3d0c0
humanhash: quiet-fish-tennis-four
File name:NXP ALTERHA CHEM U946-874987.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'344'000 bytes
First seen:2023-03-29 10:58:45 UTC
Last seen:2023-03-29 13:22:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:ce12zVZ97Dc+6yvxly1dJquB9SsFOrOHXLzCIrn0WRO5z:ceAR37P0fkoQbO10u
TLSH T10855CD1DE1C071FBD61743B289E0E733A66FEED5161289CDC9E86DE7B1BF608141A206
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)
Reporter cocaman
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
7
# of downloads :
257
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
NXP ALTERHA CHEM U946-874987.exe
Verdict:
Malicious activity
Analysis date:
2023-03-29 11:00:41 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/89c7455a-b77b-4f87-8761-3eb924591bb3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/378470/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/642419f8688c0e6397b368b0/reports/a7cb3f4a-2660-405d-9ee8-8be23b0e09f5/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/f853dbba694560317f4d0673da02ae77afce25d7eb4dc62f02ed0f5c750ce861
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/39e1ef35-143b-4dd2-a0f0-5c4b9f754a99
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/1204198
Signature
.NET source code contains potential unpacker
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 steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Injects a PE file into a foreign processes
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 submitted file
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 837114 Sample: NXP_ALTERHA_CHEM_U946-874987.exe Startdate: 29/03/2023 Architecture: WINDOWS Score: 100 93 Malicious sample detected (through community Yara rule) 2->93 95 Antivirus detection for URL or domain 2->95 97 Sigma detected: Scheduled temp file as task from temp location 2->97 99 8 other signatures 2->99 9 NXP_ALTERHA_CHEM_U946-874987.exe 7 2->9         started        13 remcos.exe 2->13         started        15 cGVWCJazBD.exe 3 2->15         started        17 2 other processes 2->17 process3 file4 79 C:\Users\user\AppData\...\cGVWCJazBD.exe, PE32 9->79 dropped 81 C:\Users\...\cGVWCJazBD.exe:Zone.Identifier, ASCII 9->81 dropped 83 C:\Users\user\AppData\Local\...\tmp81FA.tmp, XML 9->83 dropped 85 C:\...85XP_ALTERHA_CHEM_U946-874987.exe.log, ASCII 9->85 dropped 111 Contains functionality to bypass UAC (CMSTPLUA) 9->111 113 Contains functionalty to change the wallpaper 9->113 115 Contains functionality to steal Chrome passwords or cookies 9->115 121 4 other signatures 9->121 19 NXP_ALTERHA_CHEM_U946-874987.exe 2 4 9->19         started        22 powershell.exe 21 9->22         started        24 powershell.exe 19 9->24         started        26 schtasks.exe 1 9->26         started        117 Injects a PE file into a foreign processes 13->117 28 schtasks.exe 13->28         started        30 remcos.exe 13->30         started        119 Machine Learning detection for dropped file 15->119 32 schtasks.exe 17->32         started        34 remcos.exe 17->34         started        signatures5 process6 file7 75 C:\ProgramData\Remcos\remcos.exe, PE32 19->75 dropped 77 C:\ProgramData\...\remcos.exe:Zone.Identifier, ASCII 19->77 dropped 36 remcos.exe 5 19->36         started        39 conhost.exe 22->39         started        41 conhost.exe 24->41         started        43 conhost.exe 26->43         started        45 conhost.exe 28->45         started        47 conhost.exe 32->47         started        process8 signatures9 105 Machine Learning detection for dropped file 36->105 107 Adds a directory exclusion to Windows Defender 36->107 109 Injects a PE file into a foreign processes 36->109 49 remcos.exe 36->49         started        53 powershell.exe 36->53         started        55 powershell.exe 36->55         started        57 schtasks.exe 36->57         started        process10 dnsIp11 87 212.193.30.230, 3330, 49699, 49700 SPD-NETTR Russian Federation 49->87 89 geoplugin.net 178.237.33.50, 49701, 80 ATOM86-ASATOM86NL Netherlands 49->89 101 Maps a DLL or memory area into another process 49->101 103 Installs a global keyboard hook 49->103 59 remcos.exe 49->59         started        62 remcos.exe 49->62         started        64 remcos.exe 49->64         started        72 12 other processes 49->72 66 conhost.exe 53->66         started        68 conhost.exe 55->68         started        70 conhost.exe 57->70         started        signatures12 process13 dnsIp14 123 Tries to steal Instant Messenger accounts or passwords 59->123 125 Tries to steal Mail credentials (via file / registry access) 59->125 91 192.168.2.1 unknown unknown 72->91 127 Tries to harvest and steal browser information (history, passwords, etc) 72->127 signatures15
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f853dbba694560317f4d0673da02ae77afce25d7eb4dc62f02ed0f5c750ce861/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-03-29 10:59:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7bj5xotjivqdc72nazz5uavoo6x44jox5ng4mlyc5uhvy5im5bqq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection persistence rat spyware stealer
Link:
https://tria.ge/reports/230329-m3djmaga27/
Behaviour
Creates scheduled task(s)
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
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
212.193.30.230:3330
Unpacked files
SH256 hash:
4d497885d792bb88d72d47820d3154987042d1f184ad904e69e4efbccfa50860
MD5 hash:
3fcc6a697c19e2d08d30c1a69f06bcc8
SHA1 hash:
ad56a6ad9aa532a97791d09c6d6145e7087a4610
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/ddde069c-e465-4cae-80e5-3dfafa76324d/
Parent samples :
2010a7e1a136a9881ba4db4beb99088ea77ea2997d36e6d1d16fc696b34fda8b
f853dbba694560317f4d0673da02ae77afce25d7eb4dc62f02ed0f5c750ce861
6053c5c3a4202b8c2e6b2f176a99c980233f63024be06b67d3a30e2f0b4470f4
4fbb3bf81fa5622f4640afa65fcaa18cbf88da23e6018bda7d068408e9409c8a
f0b85c3d890019c1d88274fb49f4caa52d696917a418ffee89324ad40d0076c9
SH256 hash:
d06df7395d561e198f9b7c5481567116ff2e4c2e84437c018d2a2c8ea6c4ca37
MD5 hash:
0fb6061f7d37424fb9e6d0e76b019c19
SHA1 hash:
98a64bf7b459f032d6ec5793003bf61b5ae1dd74
Link:
https://www.unpac.me/results/ddde069c-e465-4cae-80e5-3dfafa76324d/
Parent samples :
495607b1aef01bf7dfb64b5cb16a8fc0f161c2923627d71c69de97328f8eca3f
2434aa78b46a3afc98fa6e888c3eb56278ba52b0ff800e7e875af9c2e7f9011a
SH256 hash:
ba55c6b3ccb2b4f9f8068db6b6177833daaed29aa1f13e031b1135e3c860786b
MD5 hash:
b30ade37a425adc3e8261776cf5bb1d5
SHA1 hash:
4980d0379814fab9f31187820fb8b3afc0201af9
Detections:
Remcos
Create hunting rule
Link:
https://www.unpac.me/results/ddde069c-e465-4cae-80e5-3dfafa76324d/
SH256 hash:
ee9aadbb1bc86237cf097858bb03879ded1295e27d6882e5bdf2fb72bbb167b5
MD5 hash:
37d69276249a46ac1b584c614aac3973
SHA1 hash:
07e55fe4f2cf7696d7ccde4823c565eaa9b370b4
Link:
https://www.unpac.me/results/ddde069c-e465-4cae-80e5-3dfafa76324d/
SH256 hash:
b4b190818a658f0b64f5aa6d39e901e9d731bf1f58fa072b4c73120a96489bdb
MD5 hash:
3c6f8b2e78f5ebf58c4f170b30c04607
SHA1 hash:
c0ee09a1a9d1c673ad7eadabab7de44ebe0ff765
Link:
https://www.unpac.me/results/ddde069c-e465-4cae-80e5-3dfafa76324d/
SH256 hash:
f853dbba694560317f4d0673da02ae77afce25d7eb4dc62f02ed0f5c750ce861
MD5 hash:
5d5e76e709b1df312317562127d3d0c0
SHA1 hash:
7ea6bbc7ec194f2b38abba2b759574e801a824f9
Link:
https://www.unpac.me/results/ddde069c-e465-4cae-80e5-3dfafa76324d/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f853dbba6945/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/f853dbba694560317f4d0673da02ae77afce25d7eb4dc62f02ed0f5c750ce861

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: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

ace 10b7fd0b4c59b3f5584199ef2cbe7b93acfc47300cac47acc9a4ce0dd82701b1

RemcosRAT

Executable exe f853dbba694560317f4d0673da02ae77afce25d7eb4dc62f02ed0f5c750ce861

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 10b7fd0b4c59b3f5584199ef2cbe7b93acfc47300cac47acc9a4ce0dd82701b1
Cape
Cape
https://www.capesandbox.com/analysis/378470/
  
Dropped by
SHA256 a6556d1518c9aad6443da0c1d1828de326944cc75890f6c237719ee3f68d87e8
  
Dropped by
MD5 b66719436517fac5fd503c7aa5b6c508
  
Dropped by
MD5 53f32c52dc14e69addde4cba87b15984

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