MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dd377dd727d3cd23165119db0d24474c795c80de9df465508f931678a2b8499c. 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


QuasarRAT


Vendor detections: 17


Intelligence 17 IOCs YARA 19 File information Comments
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SHA256 hash: dd377dd727d3cd23165119db0d24474c795c80de9df465508f931678a2b8499c
SHA3-384 hash: ac736ec27dd7041b044c26f0ae865ccd9cba8f01fd3daea52937691830c49ed25b970ea421616bfc3d9b2dc427b35974
SHA1 hash: 53a32ecd0f1d3409556e51e5eb8b9457c3fe9c79
MD5 hash: 7baca9c65d7abb17e0ba1f98b51e75e6
humanhash: harry-oregon-coffee-rugby
File name:datasheet_Required Quote.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'786'240 bytes
First seen:2024-05-10 08:01:38 UTC
Last seen:2024-05-10 08:36:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 98304:m36wCBbUSMVoNupnemWL623hPqDWsDIl:m3w+oopemW+2QDxDIl
Threatray 646 similar samples on MalwareBazaar
TLSH T1910633A57A7079ADC49553B185E2B6D4BEBB840419FCDE10F94D32CF268E338A714EC2
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 30f0ccd4d0c4c4c4 (6 x AgentTesla, 4 x Formbook, 1 x QuasarRAT)
Reporter lowmal3
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
315
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
dd377dd727d3cd23165119db0d24474c795c80de9df465508f931678a2b8499c.exe
Verdict:
Malicious activity
Analysis date:
2024-05-10 09:13:00 UTC
Tags:
quasar
Link:
https://app.any.run/tasks/94661a91-e3af-4400-a3b4-218885618747

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2831.21706.2810.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
DNS request
Connection attempt
Setting a keyboard event handler
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/663dd48a11114a9ab5e7a50b/reports/0e02bfd7-0e94-412a-97ef-9fba73b7428d/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/dd377dd727d3cd23165119db0d24474c795c80de9df465508f931678a2b8499c
Malware family:
Quasar RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d4cf81eb-59ff-44b2-bd33-f81b197baa47
Result
Threat name:
PureLog Stealer, Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1439431
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Loading BitLocker PowerShell Module
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
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1439431 Sample: datasheet_Required Quote.exe Startdate: 10/05/2024 Architecture: WINDOWS Score: 100 44 new2024q.ddns.net 2->44 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Sigma detected: Scheduled temp file as task from temp location 2->52 56 12 other signatures 2->56 8 datasheet_Required Quote.exe 7 2->8         started        12 XtJgqsLh.exe 5 2->12         started        signatures3 54 Uses dynamic DNS services 44->54 process4 file5 40 C:\Users\user\AppData\Roaming\XtJgqsLh.exe, PE32 8->40 dropped 42 C:\Users\user\AppData\Local\Temp\tmp351.tmp, XML 8->42 dropped 58 Adds a directory exclusion to Windows Defender 8->58 60 Injects a PE file into a foreign processes 8->60 14 datasheet_Required Quote.exe 8 8->14         started        18 powershell.exe 23 8->18         started        20 schtasks.exe 1 8->20         started        22 datasheet_Required Quote.exe 8->22         started        62 Multi AV Scanner detection for dropped file 12->62 64 Machine Learning detection for dropped file 12->64 24 schtasks.exe 1 12->24         started        26 XtJgqsLh.exe 12->26         started        28 XtJgqsLh.exe 12->28         started        30 2 other processes 12->30 signatures6 process7 dnsIp8 46 new2024q.ddns.net 64.188.19.207, 7080 ASN-QUADRANET-GLOBALUS United States 14->46 66 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->66 68 Installs a global keyboard hook 14->68 70 Loading BitLocker PowerShell Module 18->70 32 WmiPrvSE.exe 18->32         started        34 conhost.exe 18->34         started        36 conhost.exe 20->36         started        38 conhost.exe 24->38         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/dd377dd727d3cd23165119db0d24474c795c80de9df465508f931678a2b8499c
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/dd377dd727d3cd23165119db0d24474c795c80de9df465508f931678a2b8499c/
Threat name:
ByteCode-MSIL.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-05-09 05:38:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3u3x3vzh2pgsgfsrdhnq2jchjr4vzag6tx2gkuepsmlhrivyjgoa._file
Verdict:
malicious
Similar samples:
0972bb0ba1caff7adc92bb35f645b5e0d825fa74fb1b76ff822dce8c200ab30d
QuasarRAT
50684cb3400e3cd4959c2ccd2dd900a157ef3163179adcf8da15ed5b7b41694b
QuasarRAT
5a8e8e48add151c8058bad8173424e10e1a336dee8982da211d8f612323219c7
QuasarRAT
a2b66f9f80d2add5e7b13f9e75b6c964e53d7aa2e52065b469b83f7e7c31fa7c
QuasarRAT
ea7efe5b685adb6324eea4717d5a9ef0c09c0222acc527d3bff2dc752d0cdcf9
QuasarRAT
+ 636 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:rd scraper rdp may 9 execution spyware trojan
Link:
https://tria.ge/reports/240510-jw6p2sfb87/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
new2024q.ddns.net:7080
Unpacked files
SH256 hash:
7db05a61cfe9f73ccdeec10485aed9da84097aa194697344cf01e1b9f3910f69
MD5 hash:
93894f96127e457a4820935342cc263b
SHA1 hash:
e98882ab0710a29b34658e9cfdea4e9ae3732dbd
Link:
https://www.unpac.me/results/e776c142-d118-4080-82f2-c2d750c6666d/
SH256 hash:
4909093c1045073940daf73778f88ce3e5d4dcbc0d69e3498ad4672c2e699013
MD5 hash:
28b43a10958caef0465f7b93be0a0d77
SHA1 hash:
9c85c1cb7f6face0a6c8d0a2d2314a99092d6554
Link:
https://www.unpac.me/results/e776c142-d118-4080-82f2-c2d750c6666d/
SH256 hash:
e5b5f5bfffff6f34360f3c0d50fc539a7abb950bb495b0b3e0af620b543cb5a4
MD5 hash:
6bb5e31716e801d41ecbcbe525011c27
SHA1 hash:
2306dd157a725ea273073445b418fdf5125e91b6
Detections:
QuasarRAT
Create hunting rule
malware_windows_xrat_quasarrat
Create hunting rule
win_quasarrat_j2
Create hunting rule
MALWARE_Win_QuasarStealer
Create hunting rule
cn_utf8_windows_terminal
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MAL_QuasarRAT_May19_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Link:
https://www.unpac.me/results/e776c142-d118-4080-82f2-c2d750c6666d/
SH256 hash:
b61b329b3b25811b2848bf1bdce8a1ade665d37f651fbd5ba81db24645e40ffa
MD5 hash:
8b623647bfa41d6abdb48b28ef4d2a26
SHA1 hash:
1f0a34efe7de31997e5b624684fa895fb8bea41d
Link:
https://www.unpac.me/results/e776c142-d118-4080-82f2-c2d750c6666d/
SH256 hash:
dd377dd727d3cd23165119db0d24474c795c80de9df465508f931678a2b8499c
MD5 hash:
7baca9c65d7abb17e0ba1f98b51e75e6
SHA1 hash:
53a32ecd0f1d3409556e51e5eb8b9457c3fe9c79
Link:
https://www.unpac.me/results/e776c142-d118-4080-82f2-c2d750c6666d/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/dd377dd727d3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/dd377dd727d3cd23165119db0d24474c795c80de9df465508f931678a2b8499c

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifacts observed in infostealers
Rule name:MALWARE_Win_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Description:Detects QuasarRAT malware
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:quasarrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:RC6_Constants
Create hunting rule
Author:chort (@chort0)
Description:Look for RC6 magic constants in binary
Reference:https://twitter.com/mikko/status/417620511397400576
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_803feff4
Create hunting rule
Author:Elastic Security

File information

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

Malspam

QuasarRAT

Executable exe dd377dd727d3cd23165119db0d24474c795c80de9df465508f931678a2b8499c

(this sample)

  
Delivery method
Distributed via e-mail attachment

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

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