MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1e545cdb8cc5bba3fb3a3b1baafa4e790b12098884fa797ad54611e3b873bd18. 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: 14


Intelligence 14 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1e545cdb8cc5bba3fb3a3b1baafa4e790b12098884fa797ad54611e3b873bd18
SHA3-384 hash: b869862ceb3383ff5caa6e22f3fab72f214bd0ccd5ed289f893c5582c289479f724a08677f135638fea3765e74f3d926
SHA1 hash: bea5129f99b73850c647552099313b0f40f3aebe
MD5 hash: dcb7358d13927f3426a0618178474d06
humanhash: nineteen-massachusetts-uncle-avocado
File name:dcb7358d13927f3426a0618178474d06.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:2'076'160 bytes
First seen:2025-06-19 06:40:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:0NZpcSWeWBRYRR1qJvHIPbcNE0KKSb7yviUSQaBaOwIRxl2S62/9kR9JRHv9DGQ2:0D07YReEwKKSb7L3wip6NR9HP4xS
Threatray 31 similar samples on MalwareBazaar
TLSH T1BEA5AE2039EA401DF1B7AF75D7D0F5DA8A7EF223360A965E245603460E23B42EDC713A
TrID 58.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
13.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
8.4% (.EXE) Win64 Executable (generic) (10522/11/4)
5.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter abuse_ch
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
383
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
c17211b9f7094afc8a13f4d4ec6d0a1cbad7dd3cc5b2c2f2ae1a8693c446bb13.bin
Verdict:
Malicious activity
Analysis date:
2025-06-18 22:54:37 UTC
Tags:
lumma stealer themida amadey botnet loader auto-reg makop ransomware rdp crypto-regex gcleaner auto-startup vidar stealc telegram auto purehvnc netreactor evasion python generic
Link:
https://app.any.run/tasks/9e647f43-b9f9-49e7-b195-8c5384676f2d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/10102/
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

Win.Malware.Bulz-9933026-0
Create hunting rule

Win.Malware.Generic-6623004-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6853e2f3e04cd8dcf13b1f3e
Tags:
autorun emotet quasar
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
MSIL.Krypt.Generic
Link:
https://www.hybrid-analysis.com/sample/1e545cdb8cc5bba3fb3a3b1baafa4e790b12098884fa797ad54611e3b873bd18
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4ba7977f-dd93-4159-a12c-a2508fc49266
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1718266
Signature
.NET source code contains potential unpacker
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1718266 Sample: U7ejV3M7Ok.exe Startdate: 19/06/2025 Architecture: WINDOWS Score: 96 37 Found malware configuration 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 Yara detected Quasar RAT 2->41 43 3 other signatures 2->43 8 U7ejV3M7Ok.exe 5 2->8         started        12 google.exe 3 2->12         started        process3 file4 29 C:\Users\user\AppData\Roaming\...\google.exe, PE32 8->29 dropped 31 C:\Users\user\AppData\...\U7ejV3M7Ok.exe.log, CSV 8->31 dropped 45 Uses schtasks.exe or at.exe to add and modify task schedules 8->45 47 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->47 14 google.exe 2 8->14         started        18 schtasks.exe 1 8->18         started        signatures5 process6 dnsIp7 35 2.58.56.128, 6969 SOFTNET-ASInternetServiceProviderinSloveniaandSouthE Netherlands 14->35 49 Multi AV Scanner detection for dropped file 14->49 51 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->51 53 Installs a global keyboard hook 14->53 20 svchost.exe 1 1 14->20         started        23 schtasks.exe 1 14->23         started        25 conhost.exe 18->25         started        signatures8 process9 dnsIp10 33 127.0.0.1 unknown unknown 20->33 27 conhost.exe 23->27         started        process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1e545cdb8cc5bba3fb3a3b1baafa4e790b12098884fa797ad54611e3b873bd18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1e545cdb8cc5bba3fb3a3b1baafa4e790b12098884fa797ad54611e3b873bd18/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-06-19 01:11:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
31 of 38 (81.58%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dzkfzw4myw52h6z2hmn2v6sopefrecmiqt5hs6wviyi6hodtxuma._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
62e2c7d860a0e3e0975c5b9da5193f9ab3ca6c56ef4eea46d17cc87ac4598b90
QuasarRAT
941c4c116f4b9bd1963f0cdbb39a35b4208f964de9e4214a616581ee00a91f40
QuasarRAT
b77e9d9536abc8e48f5e4c3b3b1b3d212d841b98375bcd2fdc60ac2c10a387fe
QuasarRAT
e553c34b8aabb6ad42dfdb8a77759b32c6c035f2fc82618eefa2261c71dee761
QuasarRAT
error
QuasarRAT
f879f50e21830b34b77fd94a33b6c395b9837bb701a7f5e4dad2e9d287af9e72
QuasarRAT
+ 21 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/250619-hfvgeazwfw/
Behaviour
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Executes dropped EXE
Verdict:
Malicious
Tags:
Win.Malware.Generic-9883083-0
YARA:
n/a
Link:
https://app.threat.zone/submission/6eb749bf-9d41-4ea9-9d6b-a96536d60b0e
Unpacked files
SH256 hash:
1e545cdb8cc5bba3fb3a3b1baafa4e790b12098884fa797ad54611e3b873bd18
MD5 hash:
dcb7358d13927f3426a0618178474d06
SHA1 hash:
bea5129f99b73850c647552099313b0f40f3aebe
Link:
https://www.unpac.me/results/dc2f227b-ea4e-4eb0-b4a1-0064a77ebc2f/
SH256 hash:
d7e1189e7411b0958a6e2fd7fa11bd82d8f8a2bf1715fa8e6b868db4307fc3d1
MD5 hash:
d906a230e0fe0df77b639a058e81c0ff
SHA1 hash:
85092e6fbb3a38b0525c3b4212cae65166471eb1
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
Create hunting rule
HKTL_NET_GUID_Quasar
Create hunting rule
Link:
https://www.unpac.me/results/dc2f227b-ea4e-4eb0-b4a1-0064a77ebc2f/
Parent samples :
1e545cdb8cc5bba3fb3a3b1baafa4e790b12098884fa797ad54611e3b873bd18
5f192f10cc75f3be973d6f3725fb0479f70f67fbb3412f9900a272730acf17b3
0a45180f1b3ef2e81e988e448cbf6eb1ddedcd864a7ecf46ac5a28aef8f2740b
fe36e08ae31520fd90fd8a195bc604a0f017cd1de909035f275842b7ee44bbfd
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/1e545cdb8cc5bba3fb3a3b1baafa4e790b12098884fa797ad54611e3b873bd18

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:Costura_Protobuf
Create hunting rule
Author:@bartblaze
Description:Identifies Costura and Protobuf in .NET assemblies, respectively for storing resources and (de)serialization. Seen together might indicate a suspect binary.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:growtopia
Create hunting rule
Author:Michelle Khalil
Description:This rule detects unpacked growtopia stealer malware samples.
Rule name:INDICATOR_EXE_Packed_Fody
Create hunting rule
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:Indicator_MiniDumpWriteDump
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
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.

Web download

QuasarRAT

Executable exe 1e545cdb8cc5bba3fb3a3b1baafa4e790b12098884fa797ad54611e3b873bd18

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3568110/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/10102/

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