MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1787fd4fd81dca24ca10625e93d43168eea906184da17183ba53a306856c0f28. 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: 19


Intelligence 19 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1787fd4fd81dca24ca10625e93d43168eea906184da17183ba53a306856c0f28
SHA3-384 hash: 1e7164d4be30150c1fd65a7b878b17e4e0cba12d1bfdfea89e8d9afd626d13da4db82dad6511059233659488805b1d8a
SHA1 hash: 473fad4ac13e9c8b6b80d17ae3fb658b28d1cd47
MD5 hash: 902afcb6d3f905ff4603200341f02874
humanhash: arkansas-wisconsin-five-mango
File name:QUOTATION-9044456778.pdf (83kb).com
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'791'872 bytes
First seen:2025-01-10 14:04:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 49152:Bg6eXlKawrTTN8CaimN0G0LI1yfuJDqHkN0IrmRZiLTqK2W3rcKmUd5mgo:BKVtw7N1aim/0pMtNrmRZu32W+Kgj
TLSH T14E06331DBB42C872DB6D227FE9C3B3494845E725F835F67A4DD0386389318C9C1A66E1
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
File icon (PE):PE icon
dhash icon 0f33364d3633dc23 (3 x RemcosRAT, 3 x Formbook, 1 x AgentTesla)
Reporter abuse_ch
Tags:com exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
312
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
QUOTATION-9044456778.pdf83kb.com.exe
Verdict:
Malicious activity
Analysis date:
2025-01-10 14:08:33 UTC
Tags:
netreactor rat quasar remote
Link:
https://app.any.run/tasks/712664bb-500b-4eec-a892-52e3528e5631

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=678129172c8240e189bb7fb3
Tags:
autorun virus sage remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/678129121b01484d158e31ae/reports/c08f5069-3d89-47f7-9ebe-33fefe07b318/overview
Verdict:
Malicious
Labled as:
Trojan.GenericS
Link:
https://www.hybrid-analysis.com/sample/1787fd4fd81dca24ca10625e93d43168eea906184da17183ba53a306856c0f28
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.
Malware family:
Quasar RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/43f1b8fc-7ae9-44ee-9391-9daebf3e6105
Result
Threat name:
PureLog Stealer, Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1587580
Signature
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
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
Suricata IDS alerts for network traffic
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: 1587580 Sample: QUOTATION-9044456778.pdf (8... Startdate: 10/01/2025 Architecture: WINDOWS Score: 100 48 rency.ydns.eu 2->48 50 twart.myfirewall.org 2->50 52 2 other IPs or domains 2->52 62 Suricata IDS alerts for network traffic 2->62 64 Found malware configuration 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 10 other signatures 2->68 11 QUOTATION-9044456778.pdf (83kb).com.exe 3 2->11         started        15 Exccelworkbook.exe 2 2->15         started        signatures3 process4 file5 46 QUOTATION-90444567... (83kb).com.exe.log, ASCII 11->46 dropped 76 Injects a PE file into a foreign processes 11->76 17 QUOTATION-9044456778.pdf (83kb).com.exe 4 11->17         started        21 Exccelworkbook.exe 2 15->21         started        23 Exccelworkbook.exe 15->23         started        signatures6 process7 file8 44 C:\Users\user\AppData\...xccelworkbook.exe, PE32 17->44 dropped 60 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->60 25 Exccelworkbook.exe 3 17->25         started        28 schtasks.exe 1 17->28         started        signatures9 process10 signatures11 70 Multi AV Scanner detection for dropped file 25->70 72 Machine Learning detection for dropped file 25->72 74 Injects a PE file into a foreign processes 25->74 30 Exccelworkbook.exe 15 2 25->30         started        34 Exccelworkbook.exe 25->34         started        36 Exccelworkbook.exe 25->36         started        38 conhost.exe 28->38         started        process12 dnsIp13 54 rency.ydns.eu 94.156.177.117, 49716, 5287 NET1-ASBG Bulgaria 30->54 56 ipwho.is 195.201.57.90, 443, 49718 HETZNER-ASDE Germany 30->56 58 twart.myfirewall.org 127.0.0.4 unknown unknown 30->58 78 Hides that the sample has been downloaded from the Internet (zone.identifier) 30->78 80 Installs a global keyboard hook 30->80 40 schtasks.exe 1 30->40         started        signatures14 process15 process16 42 conhost.exe 40->42         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1787fd4fd81dca24ca10625e93d43168eea906184da17183ba53a306856c0f28
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1787fd4fd81dca24ca10625e93d43168eea906184da17183ba53a306856c0f28/
Threat name:
ByteCode-MSIL.Backdoor.Quasarrat
Create hunting rule
Status:
Malicious
First seen:
2025-01-09 12:59:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=c6d72t6ydxfcjsqqmjpjhvbrndxksbqyjwqxda52korqnblmb4ua._file
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:code discovery spyware trojan
Link:
https://tria.ge/reports/250110-rdvttswlfs/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
twart.myfirewall.org:9792
rency.ydns.eu:5287
wqo9.firewall-gateway.de:8841
code1.ydns.eu:5287
wqo9.firewall-gateway.de:9792
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/88806cc6-68b8-4fd7-9329-2e61a200514b
Unpacked files
SH256 hash:
a0fcc56ded21f565e8d86ad92704fa4fbec3eb5a672a73422c56d7ec2a3c13f9
MD5 hash:
cde39c86d8f68001c3c925a8fd8b4669
SHA1 hash:
bc09af5190b96ee7978f41aee5d59640bfcc4286
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/3f5a3117-3cee-4c4c-aa35-917baf3164d2/
SH256 hash:
ae641f9914ffe273391608a6917a0963f70f3f97b8dbbd0ce9899773974abde5
MD5 hash:
d136ab1f81383919380c7f894f239c4a
SHA1 hash:
9104c8ea330912069cf7ff4bd2643a0d55ce8782
Detections:
QuasarRAT
Create hunting rule
cn_utf8_windows_terminal
Create hunting rule
malware_windows_xrat_quasarrat
Create hunting rule
MAL_QuasarRAT_May19_1
Create hunting rule
win_quasarrat_j2
Create hunting rule
win_quasar_rat_client
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_QuasarStealer
Create hunting rule
Link:
https://www.unpac.me/results/3f5a3117-3cee-4c4c-aa35-917baf3164d2/
Parent samples :
2234c3a3350dbeba11b7564dc52d5aa1252777f9ffe8dcf4027dcb54fc4542aa
1787fd4fd81dca24ca10625e93d43168eea906184da17183ba53a306856c0f28
68fe78c0a8961da3a1121f95ebe63003c9a7c359edf68542d971d92632357422
3bee4d2ab33ac3f0605136f09cba556140d62ce9a0c1bdb1639159b43ae58943
b35f831b82f4648f91b37d8b8799cb26d30b069a52cf12e14ba9b4c06e8fb571
SH256 hash:
168b6065d141a70c80f8c09204fd7252eb104de2e450599fc5896c1439322f6e
MD5 hash:
96858749c6f54f23560dc6a5aef2c32b
SHA1 hash:
861a04be243f05efe28e6d5dd5409ed56ff64476
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/3f5a3117-3cee-4c4c-aa35-917baf3164d2/
Parent samples :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 hash:
1787fd4fd81dca24ca10625e93d43168eea906184da17183ba53a306856c0f28
MD5 hash:
902afcb6d3f905ff4603200341f02874
SHA1 hash:
473fad4ac13e9c8b6b80d17ae3fb658b28d1cd47
Link:
https://www.unpac.me/results/3f5a3117-3cee-4c4c-aa35-917baf3164d2/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1787fd4fd81d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1787fd4fd81dca24ca10625e93d43168eea906184da17183ba53a306856c0f28

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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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 (GUARD_CF)high

Comments