MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 58ed54c59f857cd80bcf4e49b164b812663ae6dce30c39dfde96e5fb69bd7e39. 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
| SHA256 hash: | 58ed54c59f857cd80bcf4e49b164b812663ae6dce30c39dfde96e5fb69bd7e39 |
|---|---|
| SHA3-384 hash: | 91be8f63f941c44d42407ddeabcced55e617f660caac11ee9e25a0a2fc5056f488cfa5f6cc91c9a32c61cd818b151cb4 |
| SHA1 hash: | af4a1c2ed4360c4f645923c4099fd81e017e337a |
| MD5 hash: | b77d317a8523525624976fd4a92960ec |
| humanhash: | nevada-romeo-kansas-sierra |
| File name: | System32.exe |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 2'861'056 bytes |
| First seen: | 2022-02-22 19:57:41 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 49152:V+hf7QQGj33SmdY5sWfLeG2QRaRaO7x/OtOFXCOza32ehyfTnm:V+hQQGj33SGmsWfLeG2QRaAO75Oth |
| Threatray | 43 similar samples on MalwareBazaar |
| TLSH | T1D9D55B1477F84E27D06FC6B2E9B0401667F1F82BF3A3AB8B9186A6791C53B104D417A7 |
| Reporter |  r3dbU7z |
| Tags: | exe QuasarRAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 45.242.93.241:5 | https://threatfox.abuse.ch/ioc/390177/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
251
Origin country :
n/a
Vendor Threat Intelligence
Detection:
QuasarStealer
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file
Searching for synchronization primitives
Launching a service
Creating a window
Сreating synchronization primitives
Changing a file
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm certreq.exe control.exe downeks expand.exe explorer.exe keylogger obfuscated quasar quasarrat rat remote.exe replace.exe schtasks.exe stealer update.exe
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
Verdict:
Malicious
Result
Threat name:
Quasar
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Uses dynamic DNS services
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Detection:
quasar
Threat name:
ByteCode-MSIL.Trojan.Quasar
Status:
Malicious
First seen:
2022-02-21 22:26:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
24 of 28 (85.71%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 33 additional samples on MalwareBazaar
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar botnet:office04 spyware trojan
Behaviour
Suspicious use of AdjustPrivilegeToken
Enumerates physical storage devices
Looks up external IP address via web service
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
updatefacebook.duckdns.org:5
Unpacked files
SH256 hash:
58ed54c59f857cd80bcf4e49b164b812663ae6dce30c39dfde96e5fb69bd7e39
MD5 hash:
b77d317a8523525624976fd4a92960ec
SHA1 hash:
af4a1c2ed4360c4f645923c4099fd81e017e337a
Malware family:
xRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
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: | INDICATOR_SUSPICIOUS_Binary_References_Browsers |
|---|---|
| Author: | ditekSHen |
| Description: | Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows executables referencing non-Windows User-Agents |
| Rule name: | INDICATOR_SUSPICIOUS_GENInfoStealer |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables containing common artifcats observed in infostealers |
| Rule name: | MALWARE_Win_QuasarStealer |
|---|---|
| Author: | ditekshen |
| Description: | Detects Quasar infostealer |
| Rule name: | MAL_QuasarRAT_May19_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects QuasarRAT malware |
| Reference: | https://blog.ensilo.com/uncovering-new-activity-by-apt10 |
| Rule name: | MAL_QuasarRAT_May19_1_RID2E1E |
|---|---|
| Author: | Florian Roth |
| Description: | Detects QuasarRAT malware |
| Reference: | https://blog.ensilo.com/uncovering-new-activity-by-apt10 |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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