MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a637dbaba86125c4fdaf3b0e01462f0e8c6e51faa6f678e08df1ef991bf4d29c. 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


DCRat


Vendor detections: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a637dbaba86125c4fdaf3b0e01462f0e8c6e51faa6f678e08df1ef991bf4d29c
SHA3-384 hash: c96efc8f0d8ae68905e53398ac4ef6d682fb6c9d2f62c305cfed23347a5ab899b4f6aca31a3eed1882756e8d03c1091f
SHA1 hash: 8d24e083fa9b46bdb26be1437f2cba6a9bd02265
MD5 hash: 459a09b0e35b49a28b9fcc961dea75c8
humanhash: sixteen-alabama-maine-papa
File name:HEUR-Backdoor.MSIL.LightStone.gen-a637dbaba86.exe
Download: download sample
Signature DCRat
Create hunting rule
File size:1'286'144 bytes
First seen:2022-12-30 16:35:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:ItKCihxBI27N66k5+T1eHqRfqY6DYypZ+4:w7ABNJehs/
Threatray 3'213 similar samples on MalwareBazaar
TLSH T11D5528023684DD01E069163BC9EF442807A8ED42BB62DA1B7E9F339D655A3E75D0F1CB
TrID 47.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
20.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.4% (.SCR) Windows screen saver (13097/50/3)
6.8% (.EXE) Win64 Executable (generic) (10523/12/4)
4.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter abuse_ch
Tags:DCRat exe


Avatar
abuse_ch
DCRat C2:
http://62.109.30.213/pipeUpdate.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
dcrat
Create hunting rule
ID:
1
File name:
HEUR-Backdoor.MSIL.LightStone.gen-a637dbaba86.exe
Verdict:
Malicious activity
Analysis date:
2022-12-30 16:38:16 UTC
Tags:
trojan rat backdoor dcrat
Link:
https://app.any.run/tasks/4545c8c6-0bbd-49ec-aa9a-cdc37e4d4531

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Malware.Uztuby-9848412-0
Create hunting rule

Win.Packed.Uztuby-9851623-0
Create hunting rule

Win.Packed.Uztuby-9875336-0
Create hunting rule

Win.Packed.Uztuby-9877681-0
Create hunting rule

Win.Malware.Uztuby-9878616-0
Create hunting rule

Win.Packed.Uztuby-9878626-0
Create hunting rule

Win.Packed.Uztuby-9878629-0
Create hunting rule

Win.Packed.Uztuby-9878755-0
Create hunting rule

Win.Malware.Uztuby-9878756-0
Create hunting rule

Win.Packed.Basic-9892827-0
Create hunting rule

Win.Packed.Basic-9952747-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the system32 subdirectories
Launching a process
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug anti-vm cmd.exe explorer.exe hacktool obfuscated packed stealer
Link:
https://www.filescan.io/uploads/63af1374bf1064ac5b2d272d/reports/96b8b5b5-189d-4035-b980-0e0decb5d8a1/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/93b4c47f-5bd1-4c5d-beb3-7ce3b9181c78
Result
Threat name:
DCRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1143263
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Drops executables to the windows directory (C:\Windows) and starts them
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Sigma detected: Schedule system process
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected DCRat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 775993 Sample: HEUR-Backdoor.MSIL.LightSto... Startdate: 30/12/2022 Architecture: WINDOWS Score: 100 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for dropped file 2->50 52 Antivirus / Scanner detection for submitted sample 2->52 54 9 other signatures 2->54 7 HEUR-Backdoor.MSIL.LightStone.gen-a637dbaba86.exe 1 29 2->7         started        11 System.exe 3 2->11         started        13 backgroundTaskHost.exe 3 2->13         started        15 3 other processes 2->15 process3 file4 38 C:\Windows\TextInput\System.exe, PE32 7->38 dropped 40 C:\...\itWzNNpciuAQihXNWYheCkepNUgRh.exe, PE32 7->40 dropped 42 C:\Windows\...\backgroundTaskHost.exe, PE32 7->42 dropped 44 14 other malicious files 7->44 dropped 56 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->56 58 Uses schtasks.exe or at.exe to add and modify task schedules 7->58 60 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->60 17 itWzNNpciuAQihXNWYheCkepNUgRh.exe 7->17         started        20 schtasks.exe 1 7->20         started        22 schtasks.exe 1 7->22         started        24 7 other processes 7->24 62 Antivirus detection for dropped file 11->62 64 Multi AV Scanner detection for dropped file 11->64 66 Machine Learning detection for dropped file 11->66 signatures5 process6 dnsIp7 46 62.109.30.213, 49696, 49697, 80 THEFIRST-ASRU Russian Federation 17->46 26 conhost.exe 20->26         started        28 conhost.exe 22->28         started        30 conhost.exe 24->30         started        32 conhost.exe 24->32         started        34 conhost.exe 24->34         started        36 4 other processes 24->36 process8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a637dbaba86125c4fdaf3b0e01462f0e8c6e51faa6f678e08df1ef991bf4d29c/
Threat name:
ByteCode-MSIL.Backdoor.LightStone
Create hunting rule
Status:
Malicious
First seen:
2021-07-17 12:43:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uy35xk5imes4j7nphmhacrrpb2gg4up2u33hryen6hxzsg7u2koa._file
Verdict:
malicious
Similar samples:
0b976213f5961eb9720219d2624463ec6acc8947004710c7e9885746e2e27234
DCRat
33358691144fd04943b0de774643ba673448b6d7e616d482beb5200d09f9beeb
DCRat
346b769168c5fc8865428098350048f6e604a7a7bd5846bf03d99e4244663706
DCRat
65dee75f5d4f0d7e0c1065a689ebe79f67c87a4d3d9654193164128e859a0ddd
DCRat
6eae3d33dba2b7adc0cfd8678236bae7de59a758caaa4e017589b0c2a2e89a05
DCRat
7c60b5f7e4d95d3da4f309fb6c759669dbc852cd53ba4fe553432d90e4804d81
DCRat
bb55fcf1625411295d87059f3116db4109ef0783504fbce9c5eca05ef72d45e0
DCRat
d1cdb6b3145e1b6d65ef1d8f5864484678e0436b34d8c8e674471332c11b099e
DCRat
f98183a2ad674f8aae6ad47e7da8b48c80175148ba333f0f57b3e6eca64bfaa6
DCRat
+ 3'203 additional samples on MalwareBazaar
Result
Malware family:
dcrat
Create hunting rule
Score:
  10/10
Tags:
family:dcrat infostealer rat
Link:
https://tria.ge/reports/221230-t384vsga25/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Checks computer location settings
Executes dropped EXE
DCRat payload
DcRat
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4177ed1a-3493-4702-9fbd-17648473fdf8
Unpacked files
SH256 hash:
685f7c0a7b8d0556d3a2c1f12096a0a1f398b49247032c0e4428dcd3943f1d90
MD5 hash:
69fb7b71ebb66ec021c2c3d02931f72c
SHA1 hash:
a337376c5d9a86bf35301d139bc052451c644409
Link:
https://www.unpac.me/results/ff4fb3b0-9571-4c03-bae3-30ced401480b/
SH256 hash:
a637dbaba86125c4fdaf3b0e01462f0e8c6e51faa6f678e08df1ef991bf4d29c
MD5 hash:
459a09b0e35b49a28b9fcc961dea75c8
SHA1 hash:
8d24e083fa9b46bdb26be1437f2cba6a9bd02265
Link:
https://www.unpac.me/results/ff4fb3b0-9571-4c03-bae3-30ced401480b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.50
Link:
https://yomi.yoroi.company/submissions/a637dbaba86125c4fdaf3b0e01462f0e8c6e51faa6f678e08df1ef991bf4d29c

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.

Comments