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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2f4d3da25e52d88eafb7a7da242e9bb507fe4626af58ca3b8c1a13e391c2000. 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


DarkComet


Vendor detections: 4


Intelligence 4 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2f4d3da25e52d88eafb7a7da242e9bb507fe4626af58ca3b8c1a13e391c2000
SHA3-384 hash: b40f8b5ba01de2422c5af200fbd3b0a0c938080de5af5688e200595c80399b3dc2e32b4dfd80b4aac45e822619be0be9
SHA1 hash: 3d6497669c371e33c2e4055f9eb8c00dc5104387
MD5 hash: 94d715c76354182482dcc8fb446a1be7
humanhash: edward-one-bluebird-twenty
File name:file
Download: download sample
Signature DarkComet
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File size:259'072 bytes
First seen:2020-02-28 04:49:23 UTC
Last seen:2020-02-28 05:31:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash a38ad86d74cafc45094a5085e33419e4 (112 x DarkComet, 1 x njrat)
ssdeep 6144:nD7cY2fgssM7Wirg9KXylmRiL+QMeC/i6isqX7UovnONztByipwxZbNW:nl8E4w5huat7UovONzbXwg
TLSH E544123EDFDD6DDFDCA38B77610A5E2F8662E333E886828173A4858F51965901D23342
Reporter johannes
Tags:DarkComet


Avatar
viql
darkcomet via https://pastebin.com/raw/PVzkfpGq

Intelligence

File Origin
# of uploads :
4
# of downloads :
496
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
PUA.Win.Packer.Upx-49
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PUA.Win.Packer.UpxProtector-1
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PUA.Win.Packer.Upolyx-12
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PUA.Win.Packer.Upx-6
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PUA.Win.Packer.Upx-4
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Win.Trojan.Darkkomet-6766578-0
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Win.Trojan.DarkKomet-1
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PUA.Win.Packer.Exe-6
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Win.Trojan.Darkkomet-6745084-0
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PUA.Win.Packer.PrivateEXEProtector4-6192998-2
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Win.Trojan.Darkkomet-219
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Gathering data
Threat name:
Win32.Trojan.Delf
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Status:
Malicious
First seen:
2020-01-06 22:02:00 UTC
AV detection:
31 of 31 (100.00%)
Threat level:
  5/5
Verdict:
unknown
Result
Malware family:
darkcomet
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Score:
  10/10
Tags:
family:darkcomet evasion persistence rat trojan upx
Link:
https://tria.ge/reports/201109-3hbx25znd2/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Modifies registry class
Modifies service
Adds Run key to start application
Loads dropped DLL
Windows security modification
Checks computer location settings
Executes dropped EXE
UPX packed file
Darkcomet
Modifies WinLogon for persistence
Modifies security service
Windows security bypass
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a2f4d3da25e52d88eafb7a7da242e9bb507fe4626af58ca3b8c1a13e391c2000

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:Malware_QA_update
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Author:Florian Roth
Description:VT Research QA uploaded malware - file update.exe
Reference:VT Research QA
Rule name:RAT_DarkComet
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Author:Kevin Breen <kevin@techanarchy.net>
Description:Detects DarkComet RAT
Reference:http://malwareconfig.com/stats/DarkComet
Rule name:suspicious_packer_section
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Author:@j0sm1
Description:The packer/protector section names/keywords
Reference:http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/
Rule name:win_darkcomet_g0
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Author:Kevin Breen / Jean-Philippe Teissier / botherder / Florian Roth / David Cannings / Slavo Greminger, SWITCH-CERT

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User Authorizationadvapi32.dll::IsValidSid
MULTIMEDIA_APICan Play Multimediamsacm32.dll::acmStreamSize
AVICAP32.DLL::capGetDriverDescriptionA
winmm.dll::waveInOpen
SHELL_APIManipulates System Shellshell32.dll::ShellExecuteA
URL_MONIKERS_APICan Download & Execute componentsURLMON.DLL::URLDownloadToFileA
WIN_BASE_APIUses Win Base APIntdll.dll::NtQuerySystemInformation
KERNEL32.DLL::LoadLibraryA
WIN_SOCK_APIUses Network to send and receive dataWS2_32.DLL::WSAIoctl

Comments