MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b21188396d28d8de129de2a44042a4d57b42afcb6fd826628e8b6637b071f89. 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 1 YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7b21188396d28d8de129de2a44042a4d57b42afcb6fd826628e8b6637b071f89
SHA3-384 hash: c0d9d7008c3611a18980dee9964ad779b35ed595c545f9d1b6d2483b49f033d1dd438f92af25b9b950c40bc8c517e861
SHA1 hash: 3ddfe3709a2b299a3e0dba866516734ee4b23275
MD5 hash: 53c1dc18657ab07de3c6ae7776b7bf39
humanhash: maryland-bulldog-nevada-zulu
File name:53c1dc18657ab07de3c6ae7776b7bf39.exe
Download: download sample
Signature DCRat
Create hunting rule
File size:1'553'920 bytes
First seen:2022-03-12 15:11:08 UTC
Last seen:2022-03-12 16:35:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2e5467cba76f44a088d39f78c5e807b6 (131 x DCRat, 112 x njrat, 79 x RedLineStealer)
ssdeep 24576:X66AfHU34R8gVGP7EEWarJ8j/ZpnXXL5wiyd3ZrTAHBk+e8FkuKRYiJlkxv1Vbyu:qRpR8gV47EEpJ8jPrmdprcHBP5gl01ku
Threatray 377 similar samples on MalwareBazaar
TLSH T14B7533DC974A114AE9F781B5DC6DD8CCE36C6DD005A2AA3AC3D60E75B4E3D327A92C10
Reporter abuse_ch
Tags:DCRat exe


Avatar
abuse_ch
DCRat C2:
http://185.246.65.77/centralAsync/GeneratorJavascript4/Windows/VideoMariadbpython/mariadb321/cpuTemporary/Multidownloads4universal/async3externalFlower/linuxpacket/WordpressUpdate/toapiLocaldownloads.php

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://185.246.65.77/centralAsync/GeneratorJavascript4/Windows/VideoMariadbpython/mariadb321/cpuTemporary/Multidownloads4universal/async3externalFlower/linuxpacket/WordpressUpdate/toapiLocaldownloads.php https://threatfox.abuse.ch/ioc/394391/

Intelligence

File Origin
# of uploads :
2
# of downloads :
270
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
dcrat
Create hunting rule
ID:
1
File name:
7b21188396d28d8de129de2a44042a4d57b42afcb6fd826628e8b6637b071f89.zip
Verdict:
Malicious activity
Analysis date:
2022-03-12 18:45:00 UTC
Tags:
trojan rat backdoor dcrat stealer
Link:
https://app.any.run/tasks/f1a995e6-06a4-4b56-a96e-30508aa5e043

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
EnigmaStub
Create hunting rule
Link:
https://www.capesandbox.com/analysis/249827/
Detection(s):
PUA.Win.Packer.EnigmaProtector-19
Create hunting rule

PUA.Win.Packer.EnigmaProtector-1
Create hunting rule

PUA.Win.Packer.EnigmaProtector-9852682-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file
Using the Windows Management Instrumentation requests
Launching a process
Creating a file in the Windows subdirectories
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Sending a UDP request
Creating a process from a recently created file
Sending an HTTP GET request
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/622cb8470cd58dbd9287010a/reports/dfe86840-0af8-413a-abfb-83885c340a25/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/c389feb4-c525-4815-8f93-d7eefdfc6950
Result
Threat name:
DCRat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/955470
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates processes via WMI
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
PE file has nameless sections
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to evade analysis by execution special instruction which cause usermode exception
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
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: 587951 Sample: VksfM6u3mf.exe Startdate: 12/03/2022 Architecture: WINDOWS Score: 100 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for dropped file 2->46 48 13 other signatures 2->48 8 VksfM6u3mf.exe 7 23 2->8         started        12 WmiPrvSE.exe 3 2->12         started        14 fjxwAegrHjTwWuIuhtsyyGqgIeH.exe 3 2->14         started        16 9 other processes 2->16 process3 dnsIp4 30 C:\...\fjxwAegrHjTwWuIuhtsyyGqgIeH.exe, PE32 8->30 dropped 32 C:\Windows\SystemApps\...\SearchUI.exe, PE32 8->32 dropped 34 C:\Recovery\WmiPrvSE.exe, PE32 8->34 dropped 36 7 other files (6 malicious) 8->36 dropped 52 Detected unpacking (changes PE section rights) 8->52 54 Detected unpacking (overwrites its own PE header) 8->54 56 Tries to evade analysis by execution special instruction which cause usermode exception 8->56 58 Creates processes via WMI 8->58 19 cmd.exe 1 8->19         started        60 Antivirus detection for dropped file 12->60 62 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 12->62 64 Machine Learning detection for dropped file 12->64 72 2 other signatures 12->72 66 Hides threads from debuggers 14->66 38 185.246.65.77, 49771, 49773, 49775 THEFIRST-ASRU Russian Federation 16->38 40 192.168.2.1 unknown unknown 16->40 68 Tries to harvest and steal browser information (history, passwords, etc) 16->68 70 Tries to steal Crypto Currency Wallets 16->70 file5 signatures6 process7 process8 21 VksfM6u3mf.exe 2 19->21         started        24 w32tm.exe 1 19->24         started        26 conhost.exe 19->26         started        signatures9 50 Hides threads from debuggers 21->50 28 w32tm.exe 1 24->28         started        process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7b21188396d28d8de129de2a44042a4d57b42afcb6fd826628e8b6637b071f89/
Threat name:
Win32.Packed.EnigmaProtector
Create hunting rule
Status:
Malicious
First seen:
2022-03-12 15:12:12 UTC
File Type:
PE (Exe)
AV detection:
26 of 27 (96.30%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pmqrra4w2kgy3yjj3yveibbkjvl3ikx4w36yezri5c3gg6yhd6eq._file
Verdict:
malicious
Similar samples:
49cfe3e8ec06fb6fc1616f2113eec3aed85ec58a24798690a493a23d0a85f7b0
DCRat
5574e0b5e404aa5bad86dd9aca033eb35421ec30dd91a9777bd6b053514010d7
DCRat
5c5cd9a05d9f32749d7be990318aa1a01a7c0a89e1b7a9e416633090070bcda0
DCRat
5ed80f3e0c9d4c92b05864fafffd410becd10235c0cb34cd1ac46090dc83f293
DCRat
8f10cb978b6b7ba34ed3fa02f6df5dc472e3737cb1dbf44371bec37c6543ad23
DCRat
8f7bab9df8b75b06db3d3386c8fea2e31c3c829793e6176f54daeaff7e9654fc
DCRat
d810072e7363c14184f61fee52b2968f7394ed84a7bb1ff52dba033b30ce17e0
DCRat
+ 367 additional samples on MalwareBazaar
Result
Malware family:
dcrat
Create hunting rule
Score:
  10/10
Tags:
family:dcrat infostealer persistence rat spyware stealer
Link:
https://tria.ge/reports/220312-sk614sggh9/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
DcRat
Process spawned unexpected child process
Unpacked files
SH256 hash:
7b21188396d28d8de129de2a44042a4d57b42afcb6fd826628e8b6637b071f89
MD5 hash:
53c1dc18657ab07de3c6ae7776b7bf39
SHA1 hash:
3ddfe3709a2b299a3e0dba866516734ee4b23275
Link:
https://www.unpac.me/results/82f09be7-13aa-49e6-b67b-a8e703482a94/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/7b21188396d2/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/7b21188396d28d8de129de2a44042a4d57b42afcb6fd826628e8b6637b071f89

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:EnigmaStub
Create hunting rule
Author:@bartblaze
Description:Identifies Enigma packer stub.
Rule name:INDICATOR_SUSPICIOUS_EXE_Embedded_Gzip_B64Encoded_File
Create hunting rule
Author:ditekSHen
Description:Detects executables containing bas64 encoded gzip files
Rule name:MALWARE_Win_DCRat
Create hunting rule
Author:ditekSHen
Description:DCRat payload
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_XORed_URL_in_EXE
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:win_smominru_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.smominru.
Rule name:XOREngine_Misc_XOR_Func
Create hunting rule
Author:smiller cc @florian @wesley idea on implementation with yara's built in XOR function
Description:Use with care, https://twitter.com/cyb3rops/status/1237042104406355968

File information

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

Web download

DCRat

Executable exe 7b21188396d28d8de129de2a44042a4d57b42afcb6fd826628e8b6637b071f89

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1828281/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/249827/

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