MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4bfea5eeb97d0ca4f3f2edd8114048e9a14f43f89187c55f29f2142cdef8da9a. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
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SHA256 hash: 4bfea5eeb97d0ca4f3f2edd8114048e9a14f43f89187c55f29f2142cdef8da9a
SHA3-384 hash: 071802f69271139865da41ccc344a8c0a670847409e75331c20a9465a0a1343b2f538ddb5626354235e8e9463c37fe01
SHA1 hash: 799bdf62b701c75a53842558f2dd715c2b21c471
MD5 hash: 7a08b190eb68164338fd36218f1d9a7c
humanhash: montana-shade-tango-maryland
File name:hesaphareketi-01.PDF.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'378'240 bytes
First seen:2023-03-15 15:31:33 UTC
Last seen:2023-03-15 17:28:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:6D8e3LT1Q5u3QwI+i4CdL2ny/v/LtGZsYjot05MZXFljXx0PeSpjBuYyK4CvfqOO:PbNFxWTNDosgopc4x/Gn
Threatray 10 similar samples on MalwareBazaar
TLSH T1D4B57DF11183FEC0D72F2E95D44429809C1028A753ACDA9CFDC93A9797D6668EF5CAB0
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 182b4d5d84f0f0b2 (9 x Formbook, 8 x AgentTesla, 6 x RemcosRAT)
Reporter abuse_ch
Tags:exe geo RemcosRAT TUR

Intelligence

File Origin
# of uploads :
2
# of downloads :
246
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
hesaphareketi-01.PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-03-15 15:47:39 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/92d2bf5e-289e-4691-a7b2-a453732c67dc

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/374610/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.30942.10360.13086.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Creating a window
Verdict:
Unknown
Threat level:
  0/10
Confidence:
80%
Tags:
packed
Link:
https://www.filescan.io/uploads/6411e4f953484187e7489f17/reports/7748adec-d8a4-4e52-8709-55d54f1485d7/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/4bfea5eeb97d0ca4f3f2edd8114048e9a14f43f89187c55f29f2142cdef8da9a
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/62ed0532-e48e-4dbb-ac19-bb7d802d5a92
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1194292
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 steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates an undocumented autostart registry key
Delayed program exit found
Deletes itself after installation
Encrypted powershell cmdline option found
Initial sample is a PE file and has a suspicious name
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
Uses an obfuscated file name to hide its real file extension (double extension)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 827198 Sample: hesaphareketi-01.PDF.exe Startdate: 15/03/2023 Architecture: WINDOWS Score: 100 55 Malicious sample detected (through community Yara rule) 2->55 57 Antivirus detection for URL or domain 2->57 59 Multi AV Scanner detection for dropped file 2->59 61 11 other signatures 2->61 9 hesaphareketi-01.PDF.exe 7 2->9         started        process3 file4 33 C:\Users\user\AppData\Roaming\...\Vxzkp.exe, PE32 9->33 dropped 35 C:\Users\user\...\Vxzkp.exe:Zone.Identifier, ASCII 9->35 dropped 37 C:\Users\...\hesaphareketi-01.PDF.exe.log, ASCII 9->37 dropped 65 Contains functionality to bypass UAC (CMSTPLUA) 9->65 67 Creates an undocumented autostart registry key 9->67 69 Encrypted powershell cmdline option found 9->69 71 5 other signatures 9->71 13 hesaphareketi-01.PDF.exe 7 19 9->13         started        18 powershell.exe 16 9->18         started        signatures5 process6 dnsIp7 45 report1.duckdns.org 45.42.45.140, 49704, 49706, 49707 VARIANCEM-ASUS United States 13->45 47 geoplugin.net 178.237.33.50, 49705, 80 ATOM86-ASATOM86NL Netherlands 13->47 39 C:\ProgramData\remcos\logs.dat, data 13->39 dropped 73 Writes to foreign memory regions 13->73 75 Maps a DLL or memory area into another process 13->75 77 Installs a global keyboard hook 13->77 20 wscript.exe 13->20         started        23 svchost.exe 12 13->23         started        25 conhost.exe 18->25         started        file8 signatures9 process10 signatures11 63 Deletes itself after installation 20->63 27 chrome.exe 15 1 23->27         started        process12 dnsIp13 41 192.168.2.1 unknown unknown 27->41 43 239.255.255.250 unknown Reserved 27->43 30 chrome.exe 27->30         started        process14 dnsIp15 49 part-0032.t-0009.fdv2-t-msedge.net 13.107.237.60, 443, 49722, 49747 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 30->49 51 part-0032.t-0009.fb-t-msedge.net 13.107.253.60, 443, 49721 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 30->51 53 9 other IPs or domains 30->53
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4bfea5eeb97d0ca4f3f2edd8114048e9a14f43f89187c55f29f2142cdef8da9a/
Threat name:
Win32.Trojan.Nekark
Create hunting rule
Status:
Malicious
First seen:
2023-03-15 11:49:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
16 of 37 (43.24%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jp7kl3vzpugkj47s5xmbcqci5gqu6q7ysgd4kxzj6ikczxxy3kna._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
033deaaa0a55c91052dfe7abc3aaf77b5310d26437330e402a102d060ae0ace9
RemcosRAT
14bfc78b7a27afa37b32f918a0dcaf6d35d66651ef59fda84f7d3eca1e452092
RemcosRAT
4651352b505fae7173a67ed85a7183925d85837d522b827cace147187ff8f43a
RemcosRAT
4cddc2bc742670f76705e9e44cd946bc924ce24161b0695e20a504675e125846
RemcosRAT
566141727e92dadbcf6a8b423760c56c39d19794bbe11eb46b3a1f9f6e9cc8f2
RemcosRAT
78b009999d967e2d3eeb4a10ce91c84048dc566d2a74d8e223a6a5b15db5839b
RemcosRAT
cf6de5f333dea0ffbc94ef944a23c99db28e66e7d51757d01a9a017a21fb8837
RemcosRAT
ea003eba10b377b0453ac0944c27b620dfd97cbabc62631b6251fc5dd1b8b3d6
RemcosRAT
f797a34828089feb29e7f77d31f184b335d7958755d385fad50d69fdbd3660d2
RemcosRAT
fd0fce5fc5184df53e084ae167182e4a7d80f26201a8ef5cf44baf117ad3e961
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost brand:microsoft phishing rat
Link:
https://tria.ge/reports/230315-sym56aea37/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates system info in registry
Modifies registry class
Enumerates physical storage devices
Drops file in Program Files directory
Detected potential entity reuse from brand microsoft.
Suspicious use of SetThreadContext
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
report1.duckdns.org:5800
Unpacked files
SH256 hash:
4bfea5eeb97d0ca4f3f2edd8114048e9a14f43f89187c55f29f2142cdef8da9a
MD5 hash:
7a08b190eb68164338fd36218f1d9a7c
SHA1 hash:
799bdf62b701c75a53842558f2dd715c2b21c471
Link:
https://www.unpac.me/results/472a01bf-d262-4d89-b59c-811fb3a56881/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4bfea5eeb97d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/4bfea5eeb97d0ca4f3f2edd8114048e9a14f43f89187c55f29f2142cdef8da9a

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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.

Cape
Cape
https://www.capesandbox.com/analysis/374610/

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