MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3e05e9f85beed0027d616a6932ec057f15c4c8499e8a6ee085f8199a61aedec3. 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: 3e05e9f85beed0027d616a6932ec057f15c4c8499e8a6ee085f8199a61aedec3
SHA3-384 hash: 496568f4bf2f1c58e68bdcfa30c3f1c033da37e47fcc0f115da1d9ad35a60fdf39227e52729fff56d3a287e2c79e2073
SHA1 hash: 44e2a65e3e06ea428136f30a71feed62beb0d007
MD5 hash: 866d3faf493b0b824b227a126a8a40c9
humanhash: fourteen-robin-skylark-connecticut
File name:866d3faf493b0b824b227a126a8a40c9.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:710'656 bytes
First seen:2021-12-23 08:43:49 UTC
Last seen:2021-12-23 11:07:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 12288:UQBU19iDIb07pU8pLPjRovlwKxLaezsNWShLLgIj8bLRUTFpKC2AXjAHLnf1ci:UQpxPjRqlPD9KKLK+AcHL9ci
TLSH T1E1E433AC3A840F99D53B11B7AD7D0122897552197177CFDDB8ECC2189E133E78BC2A90
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
181
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
866d3faf493b0b824b227a126a8a40c9.exe
Verdict:
Malicious activity
Analysis date:
2021-12-23 08:49:23 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/399940eb-1519-4c90-9a3f-7291a464fa4f

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/215918/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1140.27461.7610.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Сreating synchronization primitives
Creating a file in the %AppData% directory
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 process with a hidden window
Running batch commands
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61c436d78991ba72b39360b7/reports/5642ef34-76f2-4aeb-b737-908fc53141d4/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/81d20349-81c2-4cbd-b457-8617c451c552
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/911916
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Contains functionality to inject code into remote processes
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 Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: Suspicious Svchost Process
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 544395 Sample: 5z2HDZlUSW.exe Startdate: 23/12/2021 Architecture: WINDOWS Score: 100 69 github.com 2->69 71 avatars.githubusercontent.com 2->71 85 Malicious sample detected (through community Yara rule) 2->85 87 Multi AV Scanner detection for submitted file 2->87 89 Detected Remcos RAT 2->89 91 9 other signatures 2->91 14 5z2HDZlUSW.exe 3 2->14         started        18 winn.exe 2->18         started        20 winn.exe 2->20         started        signatures3 process4 file5 67 C:\Users\user\AppData\...\5z2HDZlUSW.exe.log, ASCII 14->67 dropped 109 Contains functionalty to change the wallpaper 14->109 111 Contains functionality to steal Chrome passwords or cookies 14->111 113 Contains functionality to inject code into remote processes 14->113 115 2 other signatures 14->115 22 5z2HDZlUSW.exe 4 4 14->22         started        25 5z2HDZlUSW.exe 14->25         started        27 winn.exe 18->27         started        29 winn.exe 18->29         started        31 winn.exe 20->31         started        signatures6 process7 file8 63 C:\Users\user\AppData\Roaming\winn.exe, PE32 22->63 dropped 65 C:\Users\user\...\winn.exe:Zone.Identifier, ASCII 22->65 dropped 33 wscript.exe 1 22->33         started        process9 process10 35 cmd.exe 1 33->35         started        process11 37 winn.exe 3 35->37         started        41 conhost.exe 35->41         started        file12 61 C:\Users\user\AppData\Local\...\winn.exe.log, ASCII 37->61 dropped 93 Detected unpacking (creates a PE file in dynamic memory) 37->93 95 Contains functionalty to change the wallpaper 37->95 97 Contains functionality to steal Chrome passwords or cookies 37->97 99 2 other signatures 37->99 43 winn.exe 4 1 37->43         started        47 winn.exe 37->47         started        signatures13 process14 dnsIp15 83 jamaru1444.myftp.biz 2.58.149.52, 2019, 49758, 49933 GBTCLOUDUS Netherlands 43->83 101 Writes to foreign memory regions 43->101 103 Allocates memory in foreign processes 43->103 105 Installs a global keyboard hook 43->105 107 Injects a PE file into a foreign processes 43->107 49 svchost.exe 43->49         started        signatures16 process17 process18 51 chrome.exe 49->51         started        54 chrome.exe 49->54         started        dnsIp19 73 192.168.2.1 unknown unknown 51->73 75 239.255.255.250 unknown Reserved 51->75 56 chrome.exe 51->56         started        59 chrome.exe 54->59         started        process20 dnsIp21 77 googlehosted.l.googleusercontent.com 172.217.168.1, 443, 49923 GOOGLEUS United States 56->77 79 accounts.google.com 172.217.168.45, 443, 49763 GOOGLEUS United States 56->79 81 9 other IPs or domains 56->81
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3e05e9f85beed0027d616a6932ec057f15c4c8499e8a6ee085f8199a61aedec3/
Threat name:
ByteCode-MSIL.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-12-23 06:07:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hyc6t6c353iae7lbnjutf3afp4k4jscjt2fg5yef7amzuyno33bq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:godsgrace_2022 brand:microsoft persistence phishing rat
Link:
https://tria.ge/reports/211223-km6jcsabbl/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Detected potential entity reuse from brand microsoft.
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
jamaru1444.myftp.biz:2019
Unpacked files
SH256 hash:
19eb1639c155dd906bd449450e7b2f0274cb90f724deb8697589e56ed63037bc
MD5 hash:
042ef03ee964c7790892a90d2dd89d87
SHA1 hash:
f8a0b06b3a00b5b55f0f25e905335c4510e7ee34
Link:
https://www.unpac.me/results/b44272ac-dc45-46cc-ab45-281566af8154/
SH256 hash:
5ec471fdd89d108f02713ca3c9cdc4d8993d6a01ef74c84e7007316e9337457d
MD5 hash:
db941e0dfacb41670af9d364327ca25b
SHA1 hash:
7b5e55762b4f69e98118e6bedb83e8f9b21f137f
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/b44272ac-dc45-46cc-ab45-281566af8154/
Parent samples :
e05a3ed46d18c39464fd1e47bcea0055e56bd2788eeda09cbd8f5d07fea0e236
cf0e8fb30fec443d523eb8c666a541a4695ad286030f5faa5dfc5760df98962d
08ce43a6cd4945d7c2d6031b465b27103ffb213bff99c5c83a31011b6c89bb13
ed57a7a3f8709be19e7451aa4fb7b7af9586df41f9d63aefc4b30b8b7a5de90a
4684a4b4906fcdcb11065f527c784d3fd34b319214d01453dc3867f00704a913
3e05e9f85beed0027d616a6932ec057f15c4c8499e8a6ee085f8199a61aedec3
SH256 hash:
55535d7416e19740ddca81496bcfb9ea7f4ec52735e01d43880f6359f92b63be
MD5 hash:
42c16475606875decc737cb31dfb2cbb
SHA1 hash:
28db67a9058bbebedbd28819bce871cdeb62f968
Link:
https://www.unpac.me/results/b44272ac-dc45-46cc-ab45-281566af8154/
SH256 hash:
3e05e9f85beed0027d616a6932ec057f15c4c8499e8a6ee085f8199a61aedec3
MD5 hash:
866d3faf493b0b824b227a126a8a40c9
SHA1 hash:
44e2a65e3e06ea428136f30a71feed62beb0d007
Link:
https://www.unpac.me/results/b44272ac-dc45-46cc-ab45-281566af8154/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/3e05e9f85bee/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/3e05e9f85beed0027d616a6932ec057f15c4c8499e8a6ee085f8199a61aedec3

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 3e05e9f85beed0027d616a6932ec057f15c4c8499e8a6ee085f8199a61aedec3

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1909245/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/215918/

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