MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4fa8e3ed74b9d941888ab229b323154e2a2bdb2274fd7e767e16bb8dadd97365. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4fa8e3ed74b9d941888ab229b323154e2a2bdb2274fd7e767e16bb8dadd97365
SHA3-384 hash: ac25225da42b522ec3bf2c9ab6a80ea0a7454e1386e2e2dd6ea38585138579fc59e4916edccfaa50205a7cdf6b3eb4a1
SHA1 hash: 0ddb67e8f7ef85a1ba98208f8706a57e58334239
MD5 hash: 074d284197ae1316ca33f900aed71d76
humanhash: romeo-gee-lima-eighteen
File name:Quote Order RFQ_53910118.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'139'200 bytes
First seen:2023-02-10 14:33:43 UTC
Last seen:2023-02-10 16:29:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:3q/ZM4+TKlLmq663Sni7wn+zQXLQ0Gch56oQE:dTT6iniUn+8X80Bv6P
TLSH T14435F10BAEC656A5D4994D30E3B815D903F08B6B2451F3EA6CD903F8DB8678F57122F2
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)
File icon (PE):PE icon
dhash icon 36c29292b2e88c82 (54 x AgentTesla, 33 x RedLineStealer, 11 x Formbook)
Reporter malwarelabnet
Tags:exe remcos RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
212
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Quote Order RFQ_53910118.exe
Verdict:
Malicious activity
Analysis date:
2023-02-10 14:36:52 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/2ec0205e-c046-430b-bb7e-54a4c2548f8c

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/363410/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILMamut.8929.1453.27428.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a window
Running batch commands
Launching a process
Creating a file
Creating a file in the %AppData% directory
Creating a process from a recently created file
Forced shutdown of a system process
Enabling autorun
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed remcos
Link:
https://www.filescan.io/uploads/63e655dce40327f8799aae03/reports/41d55e38-a1a8-4229-aa3f-84cf17ac349f/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4fa8e3ed74b9d941888ab229b323154e2a2bdb2274fd7e767e16bb8dadd97365
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:
Malicious
Link:
https://analyze.intezer.com/analyses/67b920d3-3a97-4964-b42e-b0f19bee3639
Result
Threat name:
Remcos, DarkTortilla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1171228
Signature
.NET source code contains very large array initializations
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected DarkTortilla Crypter
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 804018 Sample: Quote Order RFQ_53910118.exe Startdate: 10/02/2023 Architecture: WINDOWS Score: 100 57 geoplugin.net 2->57 71 Malicious sample detected (through community Yara rule) 2->71 73 Antivirus detection for URL or domain 2->73 75 Multi AV Scanner detection for submitted file 2->75 77 8 other signatures 2->77 10 Quote Order RFQ_53910118.exe 15 3 2->10         started        signatures3 process4 dnsIp5 65 www.google.com 142.250.180.132, 443, 49695, 49699 GOOGLEUS United States 10->65 51 C:\Users\...\Quote Order RFQ_53910118.exe.log, ASCII 10->51 dropped 97 Hides that the sample has been downloaded from the Internet (zone.identifier) 10->97 15 cmd.exe 3 10->15         started        19 cmd.exe 1 10->19         started        file6 signatures7 process8 file9 53 C:\Users\user\AppData\Roaming\yufget.exe, PE32 15->53 dropped 55 C:\Users\user\...\yufget.exe:Zone.Identifier, ASCII 15->55 dropped 67 Uses ping.exe to sleep 15->67 21 yufget.exe 14 5 15->21         started        26 conhost.exe 15->26         started        28 PING.EXE 1 15->28         started        30 PING.EXE 1 15->30         started        69 Uses ping.exe to check the status of other devices and networks 19->69 32 reg.exe 1 1 19->32         started        34 PING.EXE 1 19->34         started        36 conhost.exe 19->36         started        signatures10 process11 dnsIp12 59 www.google.com 21->59 47 C:\Users\user\AppData\Local\...\ZsagbDb.exe, PE32 21->47 dropped 87 Multi AV Scanner detection for dropped file 21->87 89 Machine Learning detection for dropped file 21->89 91 Writes to foreign memory regions 21->91 95 2 other signatures 21->95 38 ZsagbDb.exe 2 21->38         started        41 AddInProcess32.exe 2 7 21->41         started        93 Creates an undocumented autostart registry key 32->93 61 127.0.0.1 unknown unknown 34->61 file13 signatures14 process15 dnsIp16 79 Antivirus detection for dropped file 38->79 81 Multi AV Scanner detection for dropped file 38->81 83 Machine Learning detection for dropped file 38->83 45 ZsagbDb.exe 38->45         started        63 185.216.71.245, 49700, 6113 CLOUDCOMPUTINGDE Germany 41->63 49 C:\ProgramData\remcos\logs.dat, data 41->49 dropped 85 Installs a global keyboard hook 41->85 file17 signatures18 process19
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4fa8e3ed74b9d941888ab229b323154e2a2bdb2274fd7e767e16bb8dadd97365/
Threat name:
ByteCode-MSIL.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-02-09 10:16:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
44
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j6uoh3luxhmudcekwiu3giyvjyvcxwzcot6x45t6c25y3lozonsq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Link:
https://tria.ge/reports/230210-rxe8gsdd5z/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Remcos
Modifies WinLogon for persistence
Malware Config
C2 Extraction:
185.216.71.245:6113
Unpacked files
SH256 hash:
4fa8e3ed74b9d941888ab229b323154e2a2bdb2274fd7e767e16bb8dadd97365
MD5 hash:
074d284197ae1316ca33f900aed71d76
SHA1 hash:
0ddb67e8f7ef85a1ba98208f8706a57e58334239
Link:
https://www.unpac.me/results/5d671648-eba9-40ae-9917-5f06dd7ec49e/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4fa8e3ed74b9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/4fa8e3ed74b9d941888ab229b323154e2a2bdb2274fd7e767e16bb8dadd97365

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.

Cape
Cape
https://www.capesandbox.com/analysis/363410/

Comments