MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 38520db387146a005345d7862edcd4a22d3b4db1c7ae863202fa60b0eab42166. 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: 11


Intelligence 11 IOCs YARA 9 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 38520db387146a005345d7862edcd4a22d3b4db1c7ae863202fa60b0eab42166
SHA3-384 hash: 5888f209e04c82b24107ceb6664b60124d7230a8f4b766de66c8c9594b502361a66e1b50526ee4c27b8a325d1862e8b7
SHA1 hash: 0f6f524702022ee60d3fb8af2c94ca03b498d951
MD5 hash: 3913b77292f796d9ad9c152042eac79f
humanhash: crazy-seventeen-earth-delaware
File name:3913b77292f796d9ad9c152042eac79f
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:908'800 bytes
First seen:2021-07-14 06:41:53 UTC
Last seen:2021-07-14 09:40:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:iDE1yr5y2Mda/BkOhCQBMNq0wOSN/4du9JauD36hTSWHse9Ry2CQLV:ig14y2MdaZkOk+MI07SN/TJauqS5+I25
Threatray 339 similar samples on MalwareBazaar
TLSH T18A152264E2A34D5EE0999D72731859B0020E5ADB550A2F33359C9E7B3F00F872F965F2
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
129
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Seperate Remittance Notice Paper Document No 271593021.msg
Verdict:
Malicious activity
Analysis date:
2021-07-13 20:33:24 UTC
Tags:
loader rat remcos keylogger
Link:
https://app.any.run/tasks/95a43591-0246-4a86-b49d-3ee1343d04af

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/171570/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.46622954.18037.13245.UNOFFICIAL
Create hunting rule

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/27a4597d-008c-4a75-b38e-a1e023629bcf
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/816032
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
Creates an undocumented autostart registry key
Delayed program exit found
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Found malware configuration
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Suspect Svchost Activity
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
Wscript starts Powershell (via cmd or directly)
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 448442 Sample: hx8WlCXegc Startdate: 14/07/2021 Architecture: WINDOWS Score: 100 66 eter103.dvrlists.com 2->66 68 github.com 2->68 70 avatars.githubusercontent.com 2->70 84 Found malware configuration 2->84 86 Malicious sample detected (through community Yara rule) 2->86 88 Antivirus detection for URL or domain 2->88 90 10 other signatures 2->90 10 hx8WlCXegc.exe 3 9 2->10         started        signatures3 process4 file5 54 C:\Users\user\AppData\...\firewall.exe, PE32 10->54 dropped 56 C:\Users\user\AppData\...\hx8WlCXegc.exe, PE32 10->56 dropped 58 C:\Users\...\hx8WlCXegc.exe:Zone.Identifier, ASCII 10->58 dropped 60 2 other malicious files 10->60 dropped 92 Creates an undocumented autostart registry key 10->92 14 hx8WlCXegc.exe 10->14         started        17 hx8WlCXegc.exe 3 3 10->17         started        20 wscript.exe 1 10->20         started        signatures6 process7 dnsIp8 94 Multi AV Scanner detection for dropped file 14->94 96 Detected unpacking (creates a PE file in dynamic memory) 14->96 98 Contains functionalty to change the wallpaper 14->98 110 5 other signatures 14->110 62 eter103.dvrlists.com 79.134.225.110, 2050 FINK-TELECOM-SERVICESCH Switzerland 17->62 64 eter101.dvrlists.com 17->64 100 Writes to foreign memory regions 17->100 102 Allocates memory in foreign processes 17->102 104 Installs a global keyboard hook 17->104 106 Injects a PE file into a foreign processes 17->106 22 svchost.exe 12 17->22         started        24 svchost.exe 17->24         started        26 svchost.exe 17->26         started        108 Wscript starts Powershell (via cmd or directly) 20->108 28 powershell.exe 24 20->28         started        signatures9 process10 process11 30 chrome.exe 22->30         started        33 chrome.exe 22->33         started        35 WerFault.exe 22->35         started        37 WerFault.exe 22->37         started        39 chrome.exe 24->39         started        41 chrome.exe 24->41         started        43 conhost.exe 28->43         started        dnsIp12 78 192.168.2.1 unknown unknown 30->78 80 192.168.2.7, 2050, 443, 49226 unknown unknown 30->80 82 239.255.255.250 unknown Reserved 30->82 45 chrome.exe 30->45         started        48 chrome.exe 33->48         started        50 chrome.exe 39->50         started        52 chrome.exe 41->52         started        process13 dnsIp14 72 googlehosted.l.googleusercontent.com 172.217.168.33, 443, 49773 GOOGLEUS United States 45->72 74 github.com 140.82.121.3, 443, 49760, 49761 GITHUBUS United States 45->74 76 5 other IPs or domains 45->76
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/38520db387146a005345d7862edcd4a22d3b4db1c7ae863202fa60b0eab42166/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-07-14 00:39:23 UTC
AV detection:
12 of 29 (41.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hbja3m4hcrvaau2f26dc5xguuiwtwtnry6ximmqc7jqlb2vuefta._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0f588cc0f351e5a7a82372fb978693bd088484d89d2219267a4fd7f7c52203d8
RemcosRAT
1a5fef4a3bbce0a3e77343c3794484a88a4cbe42a466e09749aba58ea081bd8d
RemcosRAT
41ed87725575a97d3f1a04554cb78dd3fb973e209950d2f7c54168626ce57ef4
RemcosRAT
5541f9d1656fe9d24b9048afc1dd005bf25d9aacac4e57f932bbdb19919776dd
RemcosRAT
6b4a57c6eb6a005e9641a19c161334890128dfd6b15477f1add890041b7c8bf8
RemcosRAT
bfd78e2e17970e07df2c1a566480c5e1cc7bdc64176915b62fda6f5ee2a1f70f
RemcosRAT
cbe42b277b9e2d8ad915917a6c9a6cca9858efb70c342462a0a6701b39dda1fc
RemcosRAT
d021e872a4841ee35b654e3dfb946b8f880f3a598050bde20550899410456321
RemcosRAT
dd5107d7cc5b86ef5a650ea6e01b662066c34072859272fa886379e304e7df43
RemcosRAT
+ 329 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:june build rat
Link:
https://tria.ge/reports/210714-g1fahkt94a/
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
Suspicious use of SetThreadContext
Remcos
Malware Config
C2 Extraction:
eter101.dvrlists.com:2050
eter103.dvrlists.com:2050
Unpacked files
SH256 hash:
d78813ca0ad07db8f657c3eed4ca75ebdd98cdd7f4bcfe3d5bbc4983d8648f14
MD5 hash:
de11901899ef95b210b9c002e3731059
SHA1 hash:
53e8a529e63491068b4bcebfda9242e949671f9a
Link:
https://www.unpac.me/results/b5ee9a1a-c0dd-4c56-b0ce-26645473fe9a/
SH256 hash:
79095157dd0b1e737baae5c2d89d978833ef2bb77419d0a11f73141abaa936ba
MD5 hash:
62565604f828046a02b4ef071e8a2589
SHA1 hash:
54c8e6e17b6d4d0802c02329d2bac57f584d950b
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/b5ee9a1a-c0dd-4c56-b0ce-26645473fe9a/
Parent samples :
38520db387146a005345d7862edcd4a22d3b4db1c7ae863202fa60b0eab42166
0b1970568987b6e2a949dde9d4e249d704cbfaf622c80741db02dd711838abff
SH256 hash:
55120ea1c48fd59b4bf1a3e34507b293ad09695e745439eaf2ca951a9221a34c
MD5 hash:
58978f697f61f27609b5634a3ad19d74
SHA1 hash:
fd9cb8583d7c9751a88a08fe2a8b80959170792b
Link:
https://www.unpac.me/results/b5ee9a1a-c0dd-4c56-b0ce-26645473fe9a/
SH256 hash:
38520db387146a005345d7862edcd4a22d3b4db1c7ae863202fa60b0eab42166
MD5 hash:
3913b77292f796d9ad9c152042eac79f
SHA1 hash:
0f6f524702022ee60d3fb8af2c94ca03b498d951
Link:
https://www.unpac.me/results/b5ee9a1a-c0dd-4c56-b0ce-26645473fe9a/
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/38520db387146a005345d7862edcd4a22d3b4db1c7ae863202fa60b0eab42166

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:ach_RemcosRAT
Create hunting rule
Author:abuse.ch
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

RemcosRAT

Executable exe 38520db387146a005345d7862edcd4a22d3b4db1c7ae863202fa60b0eab42166

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1453034/
Cape
Cape
https://www.capesandbox.com/analysis/171570/

Comments


Avatar
zbet commented on 2021-07-14 06:41:53 UTC

url : hxxp://augustair.com/log/remit/mail.exe