MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a763b528c73aef993e9e6777b4ecb10d912f08455a86539e4bf96f444eb489e3. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a763b528c73aef993e9e6777b4ecb10d912f08455a86539e4bf96f444eb489e3
SHA3-384 hash: 91ac44ca1d757156211f57cf6e28d36e557b55030643a019249949ed4697cd68f15d6be6ca5905431cfb5baf5b83c384
SHA1 hash: f5fe6dda029fade9ad7c3e6e266926e2d7ae2c7d
MD5 hash: 35b8c530dd4fbbe2afd7d098e30815bf
humanhash: spring-glucose-twelve-arkansas
File name:35B8C530DD4FBBE2AFD7D098E30815BF.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:3'789'613 bytes
First seen:2023-10-19 08:30:22 UTC
Last seen:2023-10-19 09:37:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 413704d931dd90675c12a0afcdbdaa34 (8 x LummaStealer, 1 x RemcosRAT, 1 x Amadey)
ssdeep 49152:LPXHQU0Sf+yIQTi9Tw671qRc3lEDBkHFruqF4ChoRXWLNkzBUrJL9IMB0TbGa4kR:D3QxSf+e67/5hiXESmRXkGadYYC1M
Threatray 2'690 similar samples on MalwareBazaar
TLSH T16C06D021B7819526EAB211365A7DCA5A601CBC750F7190CFE3D86B5E2DF09C24732F2B
TrID 52.2% (.CPL) Windows Control Panel Item (generic) (197083/11/60)
30.8% (.OCX) Windows ActiveX control (116521/4/18)
8.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
2.7% (.EXE) Win64 Executable (generic) (10523/12/4)
1.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon 5b3931b29cd1631d (9 x LummaStealer, 3 x RemcosRAT, 2 x RedLineStealer)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
141.95.84.40:1212

Intelligence

File Origin
# of uploads :
2
# of downloads :
391
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
35B8C530DD4FBBE2AFD7D098E30815BF.exe
Verdict:
Malicious activity
Analysis date:
2023-10-19 08:38:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/2dc0690a-e981-4668-baf9-aaac477be4e4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.FileRepMalware.19425.6945.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Сreating synchronization primitives
Creating a window
Creating a file in the %AppData% subdirectories
Launching cmd.exe command interpreter
Running batch commands
Creating a process with a hidden window
Creating a file
Sending a custom TCP request
Transferring files using the Background Intelligent Transfer Service (BITS)
Enabling the 'hidden' option for recently created files
Launching a process
Unauthorized injection to a system process
Enabling autorun by creating a file
Gathering data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint greyware lolbin overlay packed runonce shell32
Link:
https://www.filescan.io/uploads/6530e949cd0633254b84f311/reports/4cdf1a3e-96dd-4f6a-949c-1cd6250c8bb5/overview
Verdict:
Malicious
Labled as:
Trojan.Penguish
Link:
https://www.hybrid-analysis.com/sample/a763b528c73aef993e9e6777b4ecb10d912f08455a86539e4bf96f444eb489e3
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/fa207552-36a3-451a-9e2b-8f60052b2325
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1328582
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to infect the boot sector
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for dropped file
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1328582 Sample: hmGpgM8hrZ.exe Startdate: 19/10/2023 Architecture: WINDOWS Score: 100 81 Snort IDS alert for network traffic 2->81 83 Multi AV Scanner detection for domain / URL 2->83 85 Found malware configuration 2->85 87 9 other signatures 2->87 10 hmGpgM8hrZ.exe 11 2->10         started        13 aswEngSrv.exe 1 2->13         started        process3 file4 67 C:\Users\user\AppData\Local\...\_is1EEF.exe, PE32 10->67 dropped 16 _is1EEF.exe 1 138 10->16         started        101 Maps a DLL or memory area into another process 13->101 20 cmd.exe 2 13->20         started        signatures5 process6 file7 47 C:\Users\user\AppData\...\vcruntime140_1.dll, PE32+ 16->47 dropped 49 C:\Users\user\AppData\...\vcruntime140.dll, PE32+ 16->49 dropped 51 C:\Users\user\AppData\Local\...\msvcp140.dll, PE32+ 16->51 dropped 55 5 other malicious files 16->55 dropped 75 Multi AV Scanner detection for dropped file 16->75 22 aswEngSrv.exe 10 16->22         started        26 cmd.exe 1 16->26         started        53 C:\Users\user\AppData\Local\...\gwogejldulys, PE32 20->53 dropped 77 Injects code into the Windows Explorer (explorer.exe) 20->77 79 Writes to foreign memory regions 20->79 28 explorer.exe 20->28         started        30 conhost.exe 20->30         started        signatures8 process9 file10 59 C:\Users\user\AppData\...\vcruntime140_1.dll, PE32+ 22->59 dropped 61 C:\Users\user\AppData\...\vcruntime140.dll, PE32+ 22->61 dropped 63 C:\Users\user\AppData\...\msvcp140.dll, PE32+ 22->63 dropped 65 4 other malicious files 22->65 dropped 97 Contains functionality to infect the boot sector 22->97 32 aswEngSrv.exe 1 22->32         started        35 conhost.exe 26->35         started        signatures11 process12 signatures13 71 Contains functionality to infect the boot sector 32->71 73 Maps a DLL or memory area into another process 32->73 37 cmd.exe 4 32->37         started        process14 file15 57 C:\Users\user\AppData\...\oimucgpelqoxbv, PE32 37->57 dropped 89 Injects code into the Windows Explorer (explorer.exe) 37->89 91 Writes to foreign memory regions 37->91 93 Found hidden mapped module (file has been removed from disk) 37->93 95 Maps a DLL or memory area into another process 37->95 41 explorer.exe 3 37->41         started        45 conhost.exe 37->45         started        signatures16 process17 dnsIp18 69 141.95.84.40, 1212, 49746 DFNVereinzurFoerderungeinesDeutschenForschungsnetzese Germany 41->69 99 System process connects to network (likely due to code injection or exploit) 41->99 signatures19
Score:
5%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/a763b528c73aef993e9e6777b4ecb10d912f08455a86539e4bf96f444eb489e3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a763b528c73aef993e9e6777b4ecb10d912f08455a86539e4bf96f444eb489e3/
Threat name:
Win32.Trojan.Rugmi
Create hunting rule
Status:
Malicious
First seen:
2023-10-16 08:05:39 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
7 of 23 (30.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u5r3kkghhlxzspu6m533j3frbwis6ccflkdfhhsl7fxuitvurhrq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0951a4a0aa2cfa91d5477895e6302d68fcddd490691787e63261e7bf9982e5cd
RemcosRAT
0aea26ef40526c8f352e09e9d14a7fe7a0663046f08090b6877b5d63bb0b4bc3
RemcosRAT
1f46d078bfe514f7aeebf7ac92bd226d10335d74702a81059b9d24f5849437e4
RemcosRAT
3880c8403a1377ae8bbcc6f782e51839364c9e2e9e29ea9a02d011eeefd51d69
RemcosRAT
38e0af644ef980b21487b6e16dbaf21119014f3364c2d23ded1f52788b88421a
RemcosRAT
50360abbc508d169cda7d1a79ad2032827b553f0b9ed82c7b1609d074c20a112
RemcosRAT
a53d11281e99e8c8a4d0ff272ffd32a43e20e5717e484587788060c71795d9da
RemcosRAT
be8ccfb19dab5c8d7b4273dc77b34c7ca0afea516e6bf85f607904345a3ad54f
RemcosRAT
d31044022de445b61ba735083a47c5fd1f4d5c8dfcf544da489572ce3fafdc79
RemcosRAT
+ 2'680 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:newcrypterkalelsiano rat
Link:
https://tria.ge/reports/231019-kep7eagd26/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
141.95.84.40:1212
Unpacked files
SH256 hash:
a763b528c73aef993e9e6777b4ecb10d912f08455a86539e4bf96f444eb489e3
MD5 hash:
35b8c530dd4fbbe2afd7d098e30815bf
SHA1 hash:
f5fe6dda029fade9ad7c3e6e266926e2d7ae2c7d
Link:
https://www.unpac.me/results/2770392c-5af3-4773-b03e-7ebb5e1dc3c8/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a763b528c73a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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:maldoc_find_kernel32_base_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

File information

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

Comments