Analysis
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max time kernel
3s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
29-08-2024 18:03
Behavioral task
behavioral1
Sample
dlmgr.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
dlmgr.exe
Resource
win10v2004-20240802-en
General
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Target
dlmgr.exe
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Size
2.0MB
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MD5
b83b407650a4430de314fab0699bee00
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SHA1
daa90ab02e6073469b64ff0ff17aeb6e11cdb6f4
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SHA256
877106f8412be6c602573e6ece4b51e3dd4eaa33030946b9ae785ed9d19933a4
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SHA512
4bc00830b9f31f69fe45584b06373527e0941d3a967f76ce681a05fa07b1d1f0ac7ffed1f1a926bdece3c78d6ea5d5f6b02b9ce29e97899afb4c968d850497b6
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SSDEEP
24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYJ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YT
Malware Config
Extracted
quasar
1.3.0.0
EbayProfiles
5.8.88.191:443
sockartek.icu:443
QSR_MUTEX_0kBRNrRz5TDLEQouI0
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encryption_key
MWhG6wsClMX8aJM2CVXT
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install_name
winsock.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
win defender run
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subdirectory
SubDir
Extracted
azorult
http://0x21.in:8000/_az/
Signatures
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Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
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Quasar payload 3 IoCs
resource yara_rule behavioral1/files/0x0008000000016d0c-17.dat family_quasar behavioral1/memory/2248-49-0x0000000000E30000-0x0000000000E8E000-memory.dmp family_quasar behavioral1/memory/1732-58-0x0000000001280000-0x00000000012DE000-memory.dmp family_quasar -
Executes dropped EXE 3 IoCs
pid Process 2108 vnc.exe 2248 windef.exe 1732 winsock.exe -
Loads dropped DLL 13 IoCs
pid Process 1976 dlmgr.exe 1976 dlmgr.exe 1976 dlmgr.exe 1976 dlmgr.exe 1976 dlmgr.exe 1976 dlmgr.exe 1976 dlmgr.exe 1976 dlmgr.exe 2884 WerFault.exe 2884 WerFault.exe 2884 WerFault.exe 2884 WerFault.exe 2248 windef.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\a: dlmgr.exe File opened (read-only) \??\b: dlmgr.exe File opened (read-only) \??\k: dlmgr.exe File opened (read-only) \??\t: dlmgr.exe File opened (read-only) \??\u: dlmgr.exe File opened (read-only) \??\v: dlmgr.exe File opened (read-only) \??\z: dlmgr.exe File opened (read-only) \??\l: dlmgr.exe File opened (read-only) \??\m: dlmgr.exe File opened (read-only) \??\n: dlmgr.exe File opened (read-only) \??\p: dlmgr.exe File opened (read-only) \??\q: dlmgr.exe File opened (read-only) \??\s: dlmgr.exe File opened (read-only) \??\w: dlmgr.exe File opened (read-only) \??\j: dlmgr.exe File opened (read-only) \??\x: dlmgr.exe File opened (read-only) \??\e: dlmgr.exe File opened (read-only) \??\g: dlmgr.exe File opened (read-only) \??\h: dlmgr.exe File opened (read-only) \??\i: dlmgr.exe File opened (read-only) \??\o: dlmgr.exe File opened (read-only) \??\r: dlmgr.exe File opened (read-only) \??\y: dlmgr.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1976 set thread context of 2704 1976 dlmgr.exe 33 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 2884 2108 WerFault.exe 30 -
System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dlmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winsock.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dlmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vnc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language windef.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2224 schtasks.exe 1896 schtasks.exe 1984 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1976 dlmgr.exe 1976 dlmgr.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2248 windef.exe -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1976 wrote to memory of 2108 1976 dlmgr.exe 30 PID 1976 wrote to memory of 2108 1976 dlmgr.exe 30 PID 1976 wrote to memory of 2108 1976 dlmgr.exe 30 PID 1976 wrote to memory of 2108 1976 dlmgr.exe 30 PID 2108 wrote to memory of 2508 2108 vnc.exe 32 PID 2108 wrote to memory of 2508 2108 vnc.exe 32 PID 2108 wrote to memory of 2508 2108 vnc.exe 32 PID 2108 wrote to memory of 2508 2108 vnc.exe 32 PID 2108 wrote to memory of 2508 2108 vnc.exe 32 PID 1976 wrote to memory of 2248 1976 dlmgr.exe 31 PID 1976 wrote to memory of 2248 1976 dlmgr.exe 31 PID 1976 wrote to memory of 2248 1976 dlmgr.exe 31 PID 1976 wrote to memory of 2248 1976 dlmgr.exe 31 PID 1976 wrote to memory of 2704 1976 dlmgr.exe 33 PID 1976 wrote to memory of 2704 1976 dlmgr.exe 33 PID 1976 wrote to memory of 2704 1976 dlmgr.exe 33 PID 1976 wrote to memory of 2704 1976 dlmgr.exe 33 PID 1976 wrote to memory of 2704 1976 dlmgr.exe 33 PID 1976 wrote to memory of 2704 1976 dlmgr.exe 33 PID 2108 wrote to memory of 2884 2108 vnc.exe 34 PID 2108 wrote to memory of 2884 2108 vnc.exe 34 PID 2108 wrote to memory of 2884 2108 vnc.exe 34 PID 2108 wrote to memory of 2884 2108 vnc.exe 34 PID 1976 wrote to memory of 2224 1976 dlmgr.exe 35 PID 1976 wrote to memory of 2224 1976 dlmgr.exe 35 PID 1976 wrote to memory of 2224 1976 dlmgr.exe 35 PID 1976 wrote to memory of 2224 1976 dlmgr.exe 35 PID 2248 wrote to memory of 1896 2248 windef.exe 38 PID 2248 wrote to memory of 1896 2248 windef.exe 38 PID 2248 wrote to memory of 1896 2248 windef.exe 38 PID 2248 wrote to memory of 1896 2248 windef.exe 38 PID 2248 wrote to memory of 1732 2248 windef.exe 40 PID 2248 wrote to memory of 1732 2248 windef.exe 40 PID 2248 wrote to memory of 1732 2248 windef.exe 40 PID 2248 wrote to memory of 1732 2248 windef.exe 40
Processes
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C:\Users\Admin\AppData\Local\Temp\dlmgr.exe"C:\Users\Admin\AppData\Local\Temp\dlmgr.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1976 -
C:\Users\Admin\AppData\Local\Temp\vnc.exe"C:\Users\Admin\AppData\Local\Temp\vnc.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2108 -
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k3⤵PID:2508
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2108 -s 1603⤵
- Loads dropped DLL
- Program crash
PID:2884
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C:\Users\Admin\AppData\Local\Temp\windef.exe"C:\Users\Admin\AppData\Local\Temp\windef.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2248 -
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\windef.exe" /rl HIGHEST /f3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1896
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C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1732 -
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f4⤵
- Scheduled Task/Job: Scheduled Task
PID:1984
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C:\Users\Admin\AppData\Local\Temp\dlmgr.exe"C:\Users\Admin\AppData\Local\Temp\dlmgr.exe"2⤵
- System Location Discovery: System Language Discovery
PID:2704
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2224
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
405KB
MD5b8ba87ee4c3fc085a2fed0d839aadce1
SHA1b3a2e3256406330e8b1779199bb2b9865122d766
SHA2564e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4
SHA5127a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2
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Filesize
349KB
MD5b4a202e03d4135484d0e730173abcc72
SHA101b30014545ea526c15a60931d676f9392ea0c70
SHA2567050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9
SHA512632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb