MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 08c829e7056b8e022539076acbc962dea072e6506184d4036b785cb0e4592371. 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: 18


Intelligence 18 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 08c829e7056b8e022539076acbc962dea072e6506184d4036b785cb0e4592371
SHA3-384 hash: 78d8210d5de55e74f863e4fc542e6c8d8be57faf53663c61598a26f5f86af3f5f0c80113e98b7c4bf0ccb3ebe51cc644
SHA1 hash: 32b779d88a8ac581d22981679e3cdb7e735a8d55
MD5 hash: 8c668d830c6e1ca73a8553b12d6e5a66
humanhash: vermont-south-green-bacon
File name:IRD-N.º 8800.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:509'252 bytes
First seen:2023-02-21 09:02:16 UTC
Last seen:2023-02-21 10:28:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 12288:vYNfBSiAraRaep5V09h8rc2Z7jnE7wP1VO2dF:vYN5SChyhsvZ7i+1VvdF
Threatray 2'673 similar samples on MalwareBazaar
TLSH T15DB423357FD8E1A3D0B217721D387AB7B9F6F412646E862B13D02E0DA91B521E58D323
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 cocaman
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
4
# of downloads :
235
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
IRD-N.º 8800.exe
Verdict:
Malicious activity
Analysis date:
2023-02-21 09:05:08 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/7c270f54-8660-40c5-b070-d2f21c23768f

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/368574/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.24.10792.4363.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Searching for the window
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
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/71922/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed remcos shell32.dll
Link:
https://www.filescan.io/uploads/63f488c742bf85850e3e7879/reports/14a76feb-469c-4524-b43e-9fab2cb60239/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/08c829e7056b8e022539076acbc962dea072e6506184d4036b785cb0e4592371
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2bac841f-2a6d-4cb4-949d-b3bd7ebb26c4
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1179615
Signature
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
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 812446 Sample: IRD-N.#U00ba 8800.exe Startdate: 21/02/2023 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 UAC Bypass using CMSTP 2->52 54 4 other signatures 2->54 7 IRD-N.#U00ba 8800.exe 19 2->7         started        10 mirwgbbkt.exe 1 2->10         started        13 mirwgbbkt.exe 1 2->13         started        process3 file4 32 C:\Users\user\AppData\...\qapacpwmum.exe, PE32 7->32 dropped 15 qapacpwmum.exe 1 3 7->15         started        56 Multi AV Scanner detection for dropped file 10->56 19 WerFault.exe 4 10 10->19         started        21 conhost.exe 10->21         started        23 WerFault.exe 10 13->23         started        25 conhost.exe 13->25         started        signatures5 process6 file7 34 C:\Users\user\AppData\...\mirwgbbkt.exe, PE32 15->34 dropped 40 Multi AV Scanner detection for dropped file 15->40 42 Contains functionality to bypass UAC (CMSTPLUA) 15->42 44 Detected unpacking (changes PE section rights) 15->44 46 7 other signatures 15->46 27 qapacpwmum.exe 2 14 15->27         started        30 conhost.exe 15->30         started        signatures8 process9 dnsIp10 36 66.63.168.35, 49698, 5888 ASN-QUADRANET-GLOBALUS United States 27->36 38 geoplugin.net 178.237.33.50, 49699, 80 ATOM86-ASATOM86NL Netherlands 27->38
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/08c829e7056b8e022539076acbc962dea072e6506184d4036b785cb0e4592371/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-02-21 07:53:15 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
14 of 25 (56.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bdectzyfnohaejjza5vmxslc32qhfzsqmgcnia3lpbolbzczenyq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1cdd50cbdf51d44354d596e4a1f8a3fee6268362ffdce61b608322bba56ebdb0
RemcosRAT
4d8144373754035a1f2efa73853ee424d7f69bdd1b8c0cd97426d25733f00ed7
RemcosRAT
62f4359aef9d0d604c03c099da375debd0d98f20cf4f673a5a32bd64989076ca
RemcosRAT
6a5446fa6f015bc8b3b2019966b23272d9309dbae8c12bc16a9e66bc9577481d
RemcosRAT
71413583e55230a0a3a659cae17e5a23da5db0b660ed850b268c16680945995a
RemcosRAT
7a4d0d31bb0250759bfcc1c939db0df5c90e55dc5a17510552e0a273d88dbee8
RemcosRAT
d542654502d1d20bd12562b35902d69e78236e4fc1246617788bb8d0d695b86c
RemcosRAT
e0bf2af1713abe4f3c276ff977a8405ad655b4cf43def74cea14b06540d5ca00
RemcosRAT
+ 2'663 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Link:
https://tria.ge/reports/230221-kz15eaga9x/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
66.63.168.35:5888
Unpacked files
SH256 hash:
8657d69ae40f7f03b090cb4c099b6c2aa0694d6e4a96761b214a2e8794a5e6e5
MD5 hash:
a4b818cf21fc706a3720b7c02045e2f1
SHA1 hash:
cc94a96084dec8b8fdffc1d4f9d9d562497468b5
Link:
https://www.unpac.me/results/a1fbd4b5-8b37-408f-9b98-a9d744aa74d6/
SH256 hash:
08c829e7056b8e022539076acbc962dea072e6506184d4036b785cb0e4592371
MD5 hash:
8c668d830c6e1ca73a8553b12d6e5a66
SHA1 hash:
32b779d88a8ac581d22981679e3cdb7e735a8d55
Link:
https://www.unpac.me/results/a1fbd4b5-8b37-408f-9b98-a9d744aa74d6/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/08c829e7056b/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/08c829e7056b8e022539076acbc962dea072e6506184d4036b785cb0e4592371

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:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
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:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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.

File information

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

Malspam

RemcosRAT

7z b121d9b4950ef1d71a99bbd8a0f93e71a150ec01f7986b1eebc1c557e9810819

RemcosRAT

Executable exe 08c829e7056b8e022539076acbc962dea072e6506184d4036b785cb0e4592371

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 b121d9b4950ef1d71a99bbd8a0f93e71a150ec01f7986b1eebc1c557e9810819
Cape
Cape
https://www.capesandbox.com/analysis/368574/
  
Dropped by
MD5 4dcfe85e647781aa52af2825f44beabd

Comments