MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c98bf80d5e23903e4934015e75f6c036130296519548b6014575207d2d296201. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c98bf80d5e23903e4934015e75f6c036130296519548b6014575207d2d296201
SHA3-384 hash: b71a6f0ad5e8b62595c91976367ba5db1877f1ba8a21461f9fff0b02ebf3888587c87dcaccfb9de37fa59974c0b58711
SHA1 hash: 5ea896f85aa14cc866ef495a716a1f1a49d75e74
MD5 hash: e2c708df4ba4c217ca4e0a177d784f82
humanhash: indigo-grey-romeo-artist
File name:e2c708df4ba4c217ca4e0a177d784f82.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:800'768 bytes
First seen:2022-12-15 08:29:30 UTC
Last seen:2022-12-15 10:39:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:8jnPavSWzuHRzhnmuSEqPt1B/yF9QgAuOEQPS410RTsMPDlFpv4pM6OK7Zt71tnf:8zk+zl5DqPt1BqjfUr0FsUpTHOVPJp
Threatray 2'386 similar samples on MalwareBazaar
TLSH T14505F19252C699E1ED0815326D37414DC8FD4C6C87BF8C643EB76A87B5E3E34583AA23
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)
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
PO 4530013967 - HITEK OCEANIC ENGR.doc
Verdict:
Malicious activity
Analysis date:
2022-12-15 08:08:52 UTC
Tags:
loader exploit cve-2017-11882 remcos
Link:
https://app.any.run/tasks/16b6d77d-9d7e-4ca8-a63f-34270322838f

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/346558/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.29069.10688.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 file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a window
Running batch commands
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/639adb0e7459fa681d0d52a7/reports/d227f7b2-cc75-4634-9ba0-1a96f1d00add/overview
Result
Verdict:
UNKNOWN
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/669ac733-5d9d-4f00-950f-a00ba9fee3bd
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1134854
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates multiple autostart registry keys
Drops PE files with benign system names
Encrypted powershell cmdline option found
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
System process connects to network (likely due to code injection or exploit)
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 767580 Sample: jcUUk5j3Zw.exe Startdate: 15/12/2022 Architecture: WINDOWS Score: 100 66 Multi AV Scanner detection for domain / URL 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 Antivirus detection for URL or domain 2->70 72 12 other signatures 2->72 11 jcUUk5j3Zw.exe 1 5 2->11         started        15 Frtnc.exe 1 2->15         started        17 explorer.exe 2->17         started        19 2 other processes 2->19 process3 file4 58 C:\Users\user\AppData\Roaming\...\Frtnc.exe, PE32 11->58 dropped 60 C:\Users\user\...\Frtnc.exe:Zone.Identifier, ASCII 11->60 dropped 62 C:\Users\user\AppData\...\jcUUk5j3Zw.exe.log, ASCII 11->62 dropped 82 Encrypted powershell cmdline option found 11->82 84 Creates multiple autostart registry keys 11->84 86 Drops PE files with benign system names 11->86 21 jcUUk5j3Zw.exe 4 5 11->21         started        25 powershell.exe 16 11->25         started        88 Antivirus detection for dropped file 15->88 90 Multi AV Scanner detection for dropped file 15->90 92 Machine Learning detection for dropped file 15->92 27 powershell.exe 15->27         started        signatures5 process6 file7 52 C:\Users\user\AppData\...\explorer.exe, PE32 21->52 dropped 54 C:\Users\...\explorer.exe:Zone.Identifier, ASCII 21->54 dropped 56 C:\Users\...\ffreduqxrwddtmuqhogymqstkcrz.vbs, data 21->56 dropped 76 Creates multiple autostart registry keys 21->76 29 wscript.exe 1 21->29         started        31 conhost.exe 25->31         started        33 conhost.exe 27->33         started        signatures8 process9 process10 35 cmd.exe 1 29->35         started        process11 37 explorer.exe 2 35->37         started        40 conhost.exe 35->40         started        signatures12 74 Encrypted powershell cmdline option found 37->74 42 explorer.exe 37->42         started        46 powershell.exe 37->46         started        48 explorer.exe 37->48         started        process13 dnsIp14 64 76.8.53.133, 1198, 49696, 49697 QUONIXNETUS United States 42->64 78 System process connects to network (likely due to code injection or exploit) 42->78 80 Installs a global keyboard hook 42->80 50 conhost.exe 46->50         started        signatures15 process16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c98bf80d5e23903e4934015e75f6c036130296519548b6014575207d2d296201/
Threat name:
ByteCode-MSIL.Ransomware.Crypmodng
Create hunting rule
Status:
Malicious
First seen:
2022-12-15 04:44:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
17 of 39 (43.59%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zgf7qdk6eoid4sjuafphl5wagyjqffsrsvelmakfouqh2ljjmiaq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0359874ac9be35e969500ffe552298ea0c8056b51c8eac0e3e835c564ef39148
RemcosRAT
202f33d58a0f7ad48695fdf718cfd5cb8a93cf9d1c410e7a6cac51ad0407a6b0
RemcosRAT
2534dc5de6f04a5706c03767505e8f2e0c57e95d9129bdf039f0564167f57837
RemcosRAT
36f48dac4f1cc73c684288dd7113e222e1a4026722ce3c55b378402aabe6361c
RemcosRAT
3b6f13caf1fff58da3a4ba290b6d7f2f4ef496517b0adc066137dc97e2ac7457
RemcosRAT
47884208f8a644ae2107eecef208a905e03839cb331ccf0dc6c50a72e969b17a
RemcosRAT
9735527911fe79127bb4cac6cab68bb6e3da29592921e1cfbfcd496245aeb74f
RemcosRAT
cc1b3f4781e52795a027671e7248ac7b4a4346f104795fd2aa341768c6434cf4
RemcosRAT
cfc1ce14ea47f2cd1bfe204a9f6c3bc90cce83c7f4714b22e13bdba3a0f2ab24
RemcosRAT
d2f787be13758751d4f892c5d06477ef18f3c63adb8fe5a7ac675c9cd9bd749a
RemcosRAT
+ 2'376 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:ikmerro v4 persistence rat
Link:
https://tria.ge/reports/221215-kd568sfa3y/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
76.8.53.133:1198
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/1e2f1eac-597f-4073-9024-17b1e52d47d4
Unpacked files
SH256 hash:
9379e148238b12c95d86efa815eea45faa02eb8654227eabba8b1b9a47c0ad6c
MD5 hash:
c5a2e9662b46fee63f62c6c3330aa6b5
SHA1 hash:
20a9fab2b5b00641c420e59919729a8c9b4973bf
Link:
https://www.unpac.me/results/bcebb0e3-e05b-4811-a91b-2bab590a6616/
SH256 hash:
f4b9f616886be2e536ffb1cae57a7f153fb4de8fcaaa1f1bcac934ede5bc4f5f
MD5 hash:
263131fa39ec5f8f4a2ab4ce41900720
SHA1 hash:
0d950c99a6b2f58131e124837dae4edb16e75206
Link:
https://www.unpac.me/results/bcebb0e3-e05b-4811-a91b-2bab590a6616/
SH256 hash:
e7a9cff0c72dd7883855a15010afe8c62c82f858994f561dcb8e3dd31ac6d13c
MD5 hash:
e74fd2835df958cecbe71846c6e595a9
SHA1 hash:
fcc506d38bc78d223e969176c298cf3963391868
Link:
https://www.unpac.me/results/bcebb0e3-e05b-4811-a91b-2bab590a6616/
SH256 hash:
3b49e69f194349b7084bdd45d8b5a480e1783668ba7dde2a43533d090907d373
MD5 hash:
bc5ad1b219daabd4a4d878757ab9cbb8
SHA1 hash:
d0ff07876bde0870ff17200a47c30f0eb6205c74
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/bcebb0e3-e05b-4811-a91b-2bab590a6616/
Parent samples :
36f48dac4f1cc73c684288dd7113e222e1a4026722ce3c55b378402aabe6361c
c98bf80d5e23903e4934015e75f6c036130296519548b6014575207d2d296201
SH256 hash:
c98bf80d5e23903e4934015e75f6c036130296519548b6014575207d2d296201
MD5 hash:
e2c708df4ba4c217ca4e0a177d784f82
SHA1 hash:
5ea896f85aa14cc866ef495a716a1f1a49d75e74
Link:
https://www.unpac.me/results/bcebb0e3-e05b-4811-a91b-2bab590a6616/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c98bf80d5e23/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/c98bf80d5e23903e4934015e75f6c036130296519548b6014575207d2d296201

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.

Web download

RemcosRAT

Executable exe c98bf80d5e23903e4934015e75f6c036130296519548b6014575207d2d296201

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2260819/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/346558/

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