MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 eda9325bc3bee9fb025f7e3d5764e83da74763c1885218901fa1d57c6c7f47a8. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: eda9325bc3bee9fb025f7e3d5764e83da74763c1885218901fa1d57c6c7f47a8
SHA3-384 hash: e87c7016d6509c0828939efcc9e28e65dc0db84812ec8df27ce792edddf3a6fb08680e6c1b607708927a9953cd376fb8
SHA1 hash: a927e27c23965af0724e3c1c7708b5fe7eff7b7a
MD5 hash: 0f4c3a873cc639c3791d353b455d4305
humanhash: fanta-wisconsin-bacon-venus
File name:PO - 4401427265 - Ilshin Corporation.pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'348'096 bytes
First seen:2022-08-16 12:39:06 UTC
Last seen:2022-08-16 22:12:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:CpswtoYA9XvMaUgHXn4BfMC/yFWmb0LfZW0iMZKRNUgbmvqn6kQC+M:CpswtoYA9XvMe34BfMHDSZ5isKfUCSqC
TLSH T14255196C325531CDCC32E531CDAA1C94A6E17CE6EF0EED0F7493315A9A2C45B8F985A2
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 64e4ccdcb2c2d4cc (9 x Formbook, 4 x BluStealer, 3 x RemcosRAT)
Reporter GovCERT_CH
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
258
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO - 4401427265 - Ilshin Corporation.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-08-16 12:40:51 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/cbe101f3-455f-48a8-9d8a-566e44a2347b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/299006/
Detection(s):
SecuriteInfo.com.BackDoor.RatNET.2.5777.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
80%
Tags:
explorer.exe packed
Link:
https://www.filescan.io/uploads/62fb90a27a5eee5048104ae3/reports/0ea7b3c3-a760-43a6-a777-1e925bda6cb3/overview
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/ae59bcac-f88e-437a-b40b-da5e3320004e
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1052283
Signature
.NET source code contains very large strings
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 684799 Sample: PO - 4401427265 - Ilshin Co... Startdate: 16/08/2022 Architecture: WINDOWS Score: 100 59 part-0032.t-0009.t-msedge.net 2->59 61 js.monitor.azure.com 2->61 63 2 other IPs or domains 2->63 79 Snort IDS alert for network traffic 2->79 81 Malicious sample detected (through community Yara rule) 2->81 83 Antivirus detection for URL or domain 2->83 85 10 other signatures 2->85 10 PO - 4401427265 - Ilshin Corporation.pdf.exe 3 2->10         started        signatures3 process4 file5 57 PO - 4401427265 - ...oration.pdf.exe.log, ASCII 10->57 dropped 13 PO - 4401427265 - Ilshin Corporation.pdf.exe 3 13 10->13         started        17 PO - 4401427265 - Ilshin Corporation.pdf.exe 10->17         started        process6 dnsIp7 73 185.222.57.147, 1989, 49763 ROOTLAYERNETNL Netherlands 13->73 75 geoplugin.net 178.237.33.50, 49764, 80 ATOM86-ASATOM86NL Netherlands 13->75 77 192.168.2.1 unknown unknown 13->77 87 Writes to foreign memory regions 13->87 89 Allocates memory in foreign processes 13->89 91 Injects a PE file into a foreign processes 13->91 19 svchost.exe 12 13->19         started        21 svchost.exe 13->21         started        23 svchost.exe 13->23         started        25 3 other processes 13->25 signatures8 process9 process10 27 chrome.exe 13 184 19->27         started        30 chrome.exe 7 19->30         started        32 chrome.exe 21->32         started        34 chrome.exe 21->34         started        36 chrome.exe 23->36         started        38 chrome.exe 23->38         started        40 conhost.exe 25->40         started        42 reg.exe 1 25->42         started        dnsIp11 65 239.255.255.250 unknown Reserved 27->65 44 chrome.exe 34 27->44         started        47 chrome.exe 30->47         started        49 chrome.exe 32->49         started        51 chrome.exe 34->51         started        53 chrome.exe 36->53         started        55 chrome.exe 38->55         started        process12 dnsIp13 67 mdec.nelreports.net 44->67 69 part-0032.t-0009.t-msedge.net 13.107.246.60, 443, 49798, 49799 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 44->69 71 7 other IPs or domains 44->71
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/eda9325bc3bee9fb025f7e3d5764e83da74763c1885218901fa1d57c6c7f47a8/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-08-16 12:35:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
55
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5wutew6dx3u7was7py6vozhihwtuoy6brbjbrea7uhkxy3d7i6ua._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost brand:microsoft evasion persistence phishing rat trojan
Link:
https://tria.ge/reports/220816-pv7tlshbaj/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Detected potential entity reuse from brand microsoft.
Suspicious use of SetThreadContext
Adds Run key to start application
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Remcos
UAC bypass
Malware Config
C2 Extraction:
185.222.57.147:1989
Unpacked files
SH256 hash:
5e97ccd8dafcb36b3cb772f6a2fd425abcf221ab9ea1930e8c2618c95332f2c6
MD5 hash:
01800f6b045def8d90c649842f56d752
SHA1 hash:
f8434a4636d0772d01aac44bb3f9753a41f01d34
Link:
https://www.unpac.me/results/3301a940-244b-4c0d-aab2-6c24e7d8ecc2/
SH256 hash:
0e56dc6beff782303588c78a0f19a881f61b536d28b5efafb35a93f7d1f57baa
MD5 hash:
cf4b14e7632c8f8677e6aba009a457e5
SHA1 hash:
253cdb9fb5fb248fdf96287092c3779f0e3e05ac
Link:
https://www.unpac.me/results/3301a940-244b-4c0d-aab2-6c24e7d8ecc2/
SH256 hash:
0fe2bd14a2e035c6c74ebec65799402a708599ec7881e59dbdcc4b0c44564240
MD5 hash:
8d163425dc07f8de030a6ab8668afb1b
SHA1 hash:
0f52a35c36ba9bcebbf4604210304f82b0a75dc5
Detections:
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/3301a940-244b-4c0d-aab2-6c24e7d8ecc2/
Parent samples :
9a423add5932cec6252ee33d82957db3612e22b2a71d6a1635ddf9d1c8a82e0e
eda9325bc3bee9fb025f7e3d5764e83da74763c1885218901fa1d57c6c7f47a8
SH256 hash:
eda9325bc3bee9fb025f7e3d5764e83da74763c1885218901fa1d57c6c7f47a8
MD5 hash:
0f4c3a873cc639c3791d353b455d4305
SHA1 hash:
a927e27c23965af0724e3c1c7708b5fe7eff7b7a
Link:
https://www.unpac.me/results/3301a940-244b-4c0d-aab2-6c24e7d8ecc2/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/eda9325bc3be/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/eda9325bc3bee9fb025f7e3d5764e83da74763c1885218901fa1d57c6c7f47a8

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:pe_imphash
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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

Executable exe eda9325bc3bee9fb025f7e3d5764e83da74763c1885218901fa1d57c6c7f47a8

(this sample)

  
Dropped by
RemcosRAT
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/299006/

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