MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1c4c51643818307480c2436301dab98c4794812abb3e94df7b133450411b66e1. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments 1
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SHA256 hash: 1c4c51643818307480c2436301dab98c4794812abb3e94df7b133450411b66e1
SHA3-384 hash: 486c068ff06fee9e5c616f7d8f52b7ac58728637da89dac54751d0dc55cf25066c3603d4adc315bf9ef45699ca08b0b2
SHA1 hash: 341bcfb6fe962deb39568052e44f5d8418df5b67
MD5 hash: 20f6c5dbed11484cbe7266e7bc9b2336
humanhash: alabama-mirror-queen-speaker
File name:20f6c5dbed11484cbe7266e7bc9b2336
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'250'560 bytes
First seen:2022-10-10 09:31:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:UyY8KOsWESAN1Y0aOIv7Hk+wnWZQzjFeM6DJOjB9sTTHydQrH9XZCGepoAgPBEuP:UaANOLvv7Hk+wnYQb6VOqH9XZL0Qpr
Threatray 21'337 similar samples on MalwareBazaar
TLSH T104A5E8F4A0BB4091F54759B1253CB9F107B231A3AED90938136BBB06CFAFD543646A4E
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 0088aeacacae8800 (1 x RemcosRAT)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
235
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO UPDATE .docx
Verdict:
Malicious activity
Analysis date:
2022-10-10 08:16:24 UTC
Tags:
opendir trojan exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/aa6d8940-347f-4144-90b4-9569905d8e4f

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/318296/
Detection(s):
SecuriteInfo.com.PUA.EmbeddedEXE-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Setting a keyboard event handler
DNS request
Sending an HTTP GET request
Launching the default Windows debugger (dwwin.exe)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed vbc.exe
Link:
https://www.filescan.io/uploads/6343e694f70d3755bbbf87de/reports/18cbea0b-79ab-40f0-afb3-7a7e92689b98/overview
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/3e2e21fa-f7c5-4b94-b023-c37c2347fef3
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1087423
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option 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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 720007 Sample: lrDKpmg0s9.exe Startdate: 11/10/2022 Architecture: WINDOWS Score: 100 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Yara detected Remcos RAT 2->52 54 8 other signatures 2->54 8 lrDKpmg0s9.exe 1 7 2->8         started        12 Qclmozj.exe 2 2->12         started        14 Qclmozj.exe 2 2->14         started        process3 file4 38 C:\Users\user\AppData\Roaming\...\Qclmozj.exe, PE32 8->38 dropped 40 C:\Users\user\...\Qclmozj.exe:Zone.Identifier, ASCII 8->40 dropped 42 C:\Users\user\AppData\...\lrDKpmg0s9.exe.log, ASCII 8->42 dropped 64 Encrypted powershell cmdline option found 8->64 66 Injects a PE file into a foreign processes 8->66 16 lrDKpmg0s9.exe 2 17 8->16         started        21 powershell.exe 16 8->21         started        68 Multi AV Scanner detection for dropped file 12->68 70 Machine Learning detection for dropped file 12->70 signatures5 process6 dnsIp7 44 mam.mastercoa.co 192.30.89.27, 37824, 49688, 49689 CLOUDSINGULARITYCA Canada 16->44 46 geoplugin.net 178.237.33.50, 49691, 80 ATOM86-ASATOM86NL Netherlands 16->46 36 C:\ProgramData\remcos\logs.dat, data 16->36 dropped 56 Maps a DLL or memory area into another process 16->56 58 Installs a global keyboard hook 16->58 23 lrDKpmg0s9.exe 1 16->23         started        26 lrDKpmg0s9.exe 16->26         started        28 lrDKpmg0s9.exe 16->28         started        32 3 other processes 16->32 30 conhost.exe 21->30         started        file8 signatures9 process10 signatures11 60 Tries to steal Instant Messenger accounts or passwords 23->60 62 Tries to steal Mail credentials (via file / registry access) 23->62 34 WerFault.exe 11 32->34         started        process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1c4c51643818307480c2436301dab98c4794812abb3e94df7b133450411b66e1/
Threat name:
ByteCode-MSIL.Trojan.RedLine
Create hunting rule
Status:
Malicious
First seen:
2022-10-10 05:57:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
24 of 26 (92.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=drgfczbydayhjagcinrqdwvzrrdzjajkxm7jjx33cm2faqi3m3qq._file
Verdict:
malicious
Label(s):
agenttesla
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remcos
Create hunting rule
Similar samples:
04a15b34b627794caf34f7277c8663ea7a75d32576f6484dc85ba2bfcbe39bfd
RemcosRAT
0c3d385c94560cc9fa56c7cab2a5401c37397820956adaa20e5b4fa6422ceb3d
RemcosRAT
22f9a7a8f42d3d3c49c8868d8013d56e54fcdcde9c020fb03bad42903f77279c
RemcosRAT
3e0bcdfffded9aaede7644824841490767cf472e2dafebdc04b090870853d8ac
RemcosRAT
71b55b8575963a25df831dbc936196e996ce48927577f2f4cc8a5398994b1cbd
RemcosRAT
a6abf72d95dac9ba6e6e4b53d9cbcd013846660a18ac5b9eeacb6cd87c783a2c
RemcosRAT
da780e7f18a59bf4184769099656b951986ff9915e684a7d9c063f471f4f6876
RemcosRAT
f171eba23f65f99cd49caa4d84e1adc3429100573de5405534922bc784dd0d23
RemcosRAT
+ 21'327 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:remcos botnet:remotehost collection keylogger persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/221010-lhlttsbdb8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
AgentTesla
Remcos
Malware Config
C2 Extraction:
mam.mastercoa.co:37824
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4d856a4f-08f0-45e1-8763-faa52fb3e5c4
Unpacked files
SH256 hash:
1c4c51643818307480c2436301dab98c4794812abb3e94df7b133450411b66e1
MD5 hash:
20f6c5dbed11484cbe7266e7bc9b2336
SHA1 hash:
341bcfb6fe962deb39568052e44f5d8418df5b67
Link:
https://www.unpac.me/results/0160b666-34e8-4e70-aecd-179ad9cb8d88/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1c4c51643818/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/1c4c51643818307480c2436301dab98c4794812abb3e94df7b133450411b66e1

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
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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.

Web download

RemcosRAT

Executable exe 1c4c51643818307480c2436301dab98c4794812abb3e94df7b133450411b66e1

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2355042/
Cape
Cape
https://www.capesandbox.com/analysis/318296/

Comments


Avatar
zbet commented on 2022-10-10 09:31:26 UTC

url : hxxp://107.175.193.183/77/vbc.exe