MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a223dbd3e666c66e48d38bbc2e552a39bbfeb5f8b1663cdfa1d4a28543980c79. 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: a223dbd3e666c66e48d38bbc2e552a39bbfeb5f8b1663cdfa1d4a28543980c79
SHA3-384 hash: 2adcd114cb44a8cd3a38198987748d077485a6efde0b7730d88369595289e0d77e224e8913e5cd41415ae833db84558e
SHA1 hash: d33e4e84a0740b38ed699eacccbb9686b7c72fb6
MD5 hash: 40f841f874a98d342f2176fbf26fca27
humanhash: october-shade-eighteen-yankee
File name:EKX.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:980'992 bytes
First seen:2023-01-26 14:17:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:/SkOvbnR8ey/Zhk2XD9zFqIGBDhyrwR9MEqfQ2u6l/SYUSxz+R/iIU/pSsGzXZ5t:Lv1XGLDv52VQmxz+inGd5u6HR+Q
Threatray 4'755 similar samples on MalwareBazaar
TLSH T1F825DF1023FC5F45F6BA0B7896B9415203B7BC82B573E21D8ED120DE4EB2B54AB45B27
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.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 7eeceeccd6c2f2f2 (14 x Formbook, 9 x AgentTesla, 8 x RemcosRAT)
Reporter James_inthe_box
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
193
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
EKX.exe
Verdict:
Malicious activity
Analysis date:
2023-01-26 14:20:37 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/ee84ee1d-a35f-494c-81e3-3549f5a357b6

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/357144/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file
Сreating synchronization primitives
Creating a file in the %AppData% directory
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:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63d28b9cfcc41339192eab2a/reports/37c62bc0-0573-4a9f-bf90-2857204d815e/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/8e7ea695-3fa6-42e8-94fc-e1bb4e8bc1a8
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1159595
Signature
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Creates autostart registry keys with suspicious names
Delayed program exit found
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 792333 Sample: EKX.exe Startdate: 26/01/2023 Architecture: WINDOWS Score: 100 55 Malicious sample detected (through community Yara rule) 2->55 57 Antivirus detection for dropped file 2->57 59 Multi AV Scanner detection for submitted file 2->59 61 6 other signatures 2->61 10 EKX.exe 3 2->10         started        14 trs.exe 2 2->14         started        16 trs.exe 2 2->16         started        18 trs.exe 2 2->18         started        process3 file4 49 C:\Users\user\AppData\Local\...KX.exe.log, ASCII 10->49 dropped 71 Contains functionalty to change the wallpaper 10->71 73 Contains functionality to steal Chrome passwords or cookies 10->73 75 Contains functionality to steal Firefox passwords or cookies 10->75 77 Delayed program exit found 10->77 20 EKX.exe 5 4 10->20         started        79 Injects a PE file into a foreign processes 14->79 24 trs.exe 14->24         started        26 trs.exe 16->26         started        28 trs.exe 18->28         started        signatures5 process6 file7 43 C:\Users\user\AppData\Roaming\trs.exe, PE32 20->43 dropped 45 C:\Users\user\...\trs.exe:Zone.Identifier, ASCII 20->45 dropped 47 C:\Users\...\tnrznakdzcvvrkbssredgsfwdlu.vbs, data 20->47 dropped 67 Creates autostart registry keys with suspicious names 20->67 30 wscript.exe 1 20->30         started        signatures8 process9 process10 32 cmd.exe 1 30->32         started        process11 34 trs.exe 3 32->34         started        37 conhost.exe 32->37         started        signatures12 63 Multi AV Scanner detection for dropped file 34->63 65 Machine Learning detection for dropped file 34->65 39 trs.exe 2 15 34->39         started        process13 dnsIp14 51 craigjonson1.gotdns.ch 194.180.49.19, 2011, 49691 LVLT-10753US Germany 39->51 53 geoplugin.net 178.237.33.50, 49692, 80 ATOM86-ASATOM86NL Netherlands 39->53 69 Installs a global keyboard hook 39->69 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a223dbd3e666c66e48d38bbc2e552a39bbfeb5f8b1663cdfa1d4a28543980c79/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-01-26 14:16:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uir5xu7gm3dg4sgtro6c4vjkhg575npywftdzx5b2srikq4ybr4q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
18a39f6193c69dae7ea38aa9dd25fddabdb651c4276e242d0b585bd13c49c3a9
RemcosRAT
2bff54b9373397bb78dc3dd57f37b85affb564edec73fbb265e9a14d313a2a1d
RemcosRAT
3ac0ff1d6a7bcbcd3feb5fd5f978b98845ac587b4b7e7be2233849295491e777
RemcosRAT
5f61b50531659487b56d97323a53c7c58445a62fb9f47489cd07b38feb3d4527
RemcosRAT
a2cbf70ab3ebedd2c768816596fade8e94d1dd0d6025001ac59a71860e45b808
RemcosRAT
cb7ffda616dbfb59cec05339b9bee2e7ecae48595545ee4e63d93e9751feb594
RemcosRAT
e611419a4b0f0fb37a0c6ec8e6bd88c5314eb889f525ecf875eea8b6338a8f2c
RemcosRAT
+ 4'745 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:eric-host 2023 persistence rat
Link:
https://tria.ge/reports/230126-rl9mysdh88/
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:
craigjonson1.gotdns.ch:2011
Unpacked files
SH256 hash:
9e7a661be463bd5b989c261cf8f0cff8e11152d355b9dd5c9e949431408b125c
MD5 hash:
5c2fed9586d6d08322ba711bc047098c
SHA1 hash:
f8f5739a54260324e768d1ea60457e2de916f86a
Link:
https://www.unpac.me/results/b9668dcc-1145-435e-9f5f-b59885e02069/
SH256 hash:
07f2f988c066d22aafdc084c7e0fc6c660d43fde2473373cd0b24fc1f8735cbf
MD5 hash:
0ea233770614a38a1f4f7c91d88005ba
SHA1 hash:
b4fff5b4368b5de6f283453b51706643683c8820
Link:
https://www.unpac.me/results/b9668dcc-1145-435e-9f5f-b59885e02069/
SH256 hash:
411569f9f0b865c651adc1234d23f86cd98fe5cd641704702276e9882be113b6
MD5 hash:
7648892096f37af50468509c5b051180
SHA1 hash:
a56a074c2770152761f6c4975db0e9f7d57f8cda
Link:
https://www.unpac.me/results/b9668dcc-1145-435e-9f5f-b59885e02069/
SH256 hash:
a3c190413d60ac514112a950a0ddb701b5be4fdfcfa6b79c38e3483383f1abe4
MD5 hash:
1724076487c2e837fecc909dc2e9d0a6
SHA1 hash:
33c1077b9a8504807adaf428ac575f06f0402356
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/b9668dcc-1145-435e-9f5f-b59885e02069/
Parent samples :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 hash:
ff1b42ea7d56a37eae801adbddb7116f52a4664c0b41302736f522852edc2747
MD5 hash:
89ac57478044c57c7195943116a521e0
SHA1 hash:
1ff2bafeed795423e3538d810bda8e1e3fcdcfa5
Link:
https://www.unpac.me/results/b9668dcc-1145-435e-9f5f-b59885e02069/
SH256 hash:
a223dbd3e666c66e48d38bbc2e552a39bbfeb5f8b1663cdfa1d4a28543980c79
MD5 hash:
40f841f874a98d342f2176fbf26fca27
SHA1 hash:
d33e4e84a0740b38ed699eacccbb9686b7c72fb6
Link:
https://www.unpac.me/results/b9668dcc-1145-435e-9f5f-b59885e02069/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a223dbd3e666/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/a223dbd3e666c66e48d38bbc2e552a39bbfeb5f8b1663cdfa1d4a28543980c79

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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/357144/

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