MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8dd3a8d57533cddb053799ed6f14291ed97042e9209870f8daa0a8eeb9223d38. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8dd3a8d57533cddb053799ed6f14291ed97042e9209870f8daa0a8eeb9223d38
SHA3-384 hash: 9f97a6e32dad74bc5d6202218d3adab594d4fb2145e564dc72685952208dba1c516b1cf1791e26fa520d1d0b0d213b7f
SHA1 hash: e14bfbe2f059a26e75755e29f032c5e0d3cf673c
MD5 hash: d153584c42340d402d6e44454c3ad5b2
humanhash: kitten-artist-delta-ohio
File name:8dd3a8d57533cddb053799ed6f14291ed97042e9209870f8daa0a8eeb9223d38
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:960'000 bytes
First seen:2024-09-09 12:41:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 21371b611d91188d602926b15db6bd48 (70 x Formbook, 33 x AgentTesla, 20 x RemcosRAT)
ssdeep 24576:/iUmSB/o5d1ubcvq/q9JwVZeYc+V8leByGrKzp6B3IjM://mU/ohubcvq/2wVZee8leDrKzp638
Threatray 31 similar samples on MalwareBazaar
TLSH T10415233795C3DC88F25237F5C03ACFE9966134609945BB268700F69AE8347A3C11AF6E
TrID 39.1% (.EXE) UPX compressed Win32 Executable (27066/9/6)
38.3% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
7.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.9% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
437
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8dd3a8d57533cddb053799ed6f14291ed97042e9209870f8daa0a8eeb9223d38
Verdict:
No threats detected
Analysis date:
2024-09-09 12:43:35 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/29f73252-c1b7-4cd7-af3e-960726b44f9b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Win32.AgentTesla.13683.23123.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66deed1cee4e81557817187f
Tags:
Generic Malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
DNS request
Creating a file
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Blocking the User Account Control
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit lolbin microsoft_visual_cc overlay packed packed packed shell32 strictor upx
Link:
https://www.filescan.io/uploads/66deed1fac80a0110f66e09b/reports/6d08c903-95d9-4158-8525-9c8a1cc97a44/overview
Verdict:
Malicious
Labled as:
Strictor.Generic
Link:
https://www.hybrid-analysis.com/sample/8dd3a8d57533cddb053799ed6f14291ed97042e9209870f8daa0a8eeb9223d38
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/c0d86ec4-c5a5-4354-a9f6-a3ab673e2b6f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1507952
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
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
Disables UAC (registry)
Found API chain indicative of sandbox detection
Found malware configuration
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1507952 Sample: XQmV6MKs53.exe Startdate: 09/09/2024 Architecture: WINDOWS Score: 100 39 system6233.duckdns.org 2->39 41 geoplugin.net 2->41 49 Suricata IDS alerts for network traffic 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 57 10 other signatures 2->57 10 XQmV6MKs53.exe 4 2->10         started        signatures3 55 Uses dynamic DNS services 39->55 process4 signatures5 73 Binary is likely a compiled AutoIt script file 10->73 75 Found API chain indicative of sandbox detection 10->75 77 Switches to a custom stack to bypass stack traces 10->77 13 XQmV6MKs53.exe 2 10->13         started        16 svchost.exe 10->16         started        process6 signatures7 79 Writes to foreign memory regions 13->79 81 Maps a DLL or memory area into another process 13->81 18 svchost.exe 3 15 13->18         started        83 Contains functionality to bypass UAC (CMSTPLUA) 16->83 85 Tries to steal Mail credentials (via file registry) 16->85 87 Contains functionalty to change the wallpaper 16->87 89 5 other signatures 16->89 process8 dnsIp9 43 geoplugin.net 178.237.33.50, 49713, 80 ATOM86-ASATOM86NL Netherlands 18->43 45 system6233.duckdns.org 162.218.211.203, 3045, 49705, 49708 ASN-QUADRANET-GLOBALUS United States 18->45 37 C:\ProgramData\remcos\logs.dat, data 18->37 dropped 59 System process connects to network (likely due to code injection or exploit) 18->59 61 Detected Remcos RAT 18->61 63 Tries to harvest and steal browser information (history, passwords, etc) 18->63 65 2 other signatures 18->65 23 svchost.exe 1 18->23         started        26 svchost.exe 1 18->26         started        28 cmd.exe 1 18->28         started        30 3 other processes 18->30 file10 signatures11 process12 signatures13 67 Tries to steal Instant Messenger accounts or passwords 23->67 69 Tries to harvest and steal browser information (history, passwords, etc) 23->69 71 Tries to steal Mail credentials (via file / registry access) 26->71 32 reg.exe 1 28->32         started        35 conhost.exe 28->35         started        process14 signatures15 47 Disables UAC (registry) 32->47
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8dd3a8d57533cddb053799ed6f14291ed97042e9209870f8daa0a8eeb9223d38
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8dd3a8d57533cddb053799ed6f14291ed97042e9209870f8daa0a8eeb9223d38/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-08-26 03:55:42 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rxj2rvlvgpg5wbjxthww6fbjd3mxaqxjecmhb6g2ucuo5ojchu4a._file
Verdict:
malicious
Similar samples:
391ac1ceedd3c960f32890f834a86ba1570ee5a0cc12dcef1714d43bb29fc457
RemcosRAT
406306efb272acd3c69ab3b1c1fadea2c41bf817ce71e5872b6ff426248207d5
RemcosRAT
5e227c08361efd95e0ee576fed034bad2ea5d286fa9ea3d2d3cc221fa75b19cb
RemcosRAT
655a38b1686aa4f75f6dd4f2b59c8e9e09cde9997b46bafbe4e3dee38d859c99
RemcosRAT
893332a41c4d1afdc63113f4b71216211b027332e2bb0c68c11cb5d2bb2f16e5
RemcosRAT
+ 21 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery evasion rat trojan upx
Link:
https://tria.ge/reports/240909-pxb5qayaqp/
Behaviour
Modifies registry key
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
UPX packed file
Remcos
UAC bypass
Malware Config
C2 Extraction:
system6233.duckdns.org:3045
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8cfa9af3-e5c3-40e5-b51d-0d5663ed13cb
Unpacked files
SH256 hash:
ab754407527c24604917b86037b6f4653db53f6503cd70bc1a4d9e18bcbba2fa
MD5 hash:
04686f2fd92d1e91be37922e24230846
SHA1 hash:
64ec0a6c1e66322e492b0310e1a327773b970b14
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/5ee1fbbd-79a0-404f-ac8f-d5bc1bb0c742/
Parent samples :
8dd3a8d57533cddb053799ed6f14291ed97042e9209870f8daa0a8eeb9223d38
9721ea84aa82b10c5f21acc6212fb32f70750557cb6c5d9b3052ff12f74e4bce
SH256 hash:
9d0bf1a3165e8755338ae20c935a249dcae0521e6b4026a5b9e36a1400aa7214
MD5 hash:
ab3fb16fdac3130f7e1e0510b50a1397
SHA1 hash:
60bfbecf54002c61734ec70c0549e5c9cd7536ac
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/5ee1fbbd-79a0-404f-ac8f-d5bc1bb0c742/
SH256 hash:
8dd3a8d57533cddb053799ed6f14291ed97042e9209870f8daa0a8eeb9223d38
MD5 hash:
d153584c42340d402d6e44454c3ad5b2
SHA1 hash:
e14bfbe2f059a26e75755e29f032c5e0d3cf673c
Link:
https://www.unpac.me/results/5ee1fbbd-79a0-404f-ac8f-d5bc1bb0c742/
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/8dd3a8d57533cddb053799ed6f14291ed97042e9209870f8daa0a8eeb9223d38

File information

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

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::GetAce
MULTIMEDIA_APICan Play MultimediaWINMM.dll::timeGetTime
WIN_BASE_APIUses Win Base APIKERNEL32.DLL::LoadLibraryA

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