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Analysis
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max time kernel
142s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
23/07/2024, 01:19
Static task
static1
Behavioral task
behavioral1
Sample
a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe
Resource
win10v2004-20240709-en
General
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Target
a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe
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Size
95KB
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MD5
6a60b277429c8903dbc2956a56bc80de
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SHA1
fb0641f28f19f24906ca43d4a87636c60eb5f4a7
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SHA256
a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa
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SHA512
4a9b27645889b0e11074922e6f9f0cb4228a395bee03bef09677ce93af6c3b5b534bd49f83cba41a0ed2fd80be6a01ff2384d5ca145b4ee9ecf5dda00689fa7c
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SSDEEP
1536:1MIPgEm56wnbkKC2ZyBJU066lwLCRVEB+nR/y8cmNrEIviCOzuajkrDl9HNSjcU:11PgEOng1d66jRVa+n4NmNNouukrD7HG
Malware Config
Signatures
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Blocklisted process makes network request 10 IoCs
flow pid Process 3 2020 rundll32.exe 7 2020 rundll32.exe 8 2020 rundll32.exe 9 2020 rundll32.exe 10 2020 rundll32.exe 13 2020 rundll32.exe 14 2020 rundll32.exe 15 2020 rundll32.exe 17 2020 rundll32.exe 18 2020 rundll32.exe -
Deletes itself 1 IoCs
pid Process 2792 jluzw.exe -
Executes dropped EXE 1 IoCs
pid Process 2792 jluzw.exe -
Loads dropped DLL 3 IoCs
pid Process 2672 cmd.exe 2672 cmd.exe 2020 rundll32.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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resource yara_rule behavioral1/files/0x0013000000016cf5-13.dat upx behavioral1/memory/2020-15-0x0000000010000000-0x0000000010022000-memory.dmp upx behavioral1/memory/2020-16-0x0000000010000000-0x0000000010022000-memory.dmp upx behavioral1/memory/2020-20-0x0000000010000000-0x0000000010022000-memory.dmp upx behavioral1/memory/2020-21-0x0000000010000000-0x0000000010022000-memory.dmp upx behavioral1/memory/2020-22-0x0000000010000000-0x0000000010022000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\zxyvq\\htkdczoy.tdh\",crc32" rundll32.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) \??\h: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\w: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\g: rundll32.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PHYSICALDRIVE0 rundll32.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe -
Kills process with taskkill 1 IoCs
pid Process 2872 taskkill.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2164 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2020 rundll32.exe 2020 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2020 rundll32.exe Token: SeDebugPrivilege 2872 taskkill.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2360 a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe 2792 jluzw.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 2360 wrote to memory of 2672 2360 a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe 30 PID 2360 wrote to memory of 2672 2360 a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe 30 PID 2360 wrote to memory of 2672 2360 a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe 30 PID 2360 wrote to memory of 2672 2360 a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe 30 PID 2672 wrote to memory of 2164 2672 cmd.exe 32 PID 2672 wrote to memory of 2164 2672 cmd.exe 32 PID 2672 wrote to memory of 2164 2672 cmd.exe 32 PID 2672 wrote to memory of 2164 2672 cmd.exe 32 PID 2672 wrote to memory of 2792 2672 cmd.exe 33 PID 2672 wrote to memory of 2792 2672 cmd.exe 33 PID 2672 wrote to memory of 2792 2672 cmd.exe 33 PID 2672 wrote to memory of 2792 2672 cmd.exe 33 PID 2792 wrote to memory of 2020 2792 jluzw.exe 34 PID 2792 wrote to memory of 2020 2792 jluzw.exe 34 PID 2792 wrote to memory of 2020 2792 jluzw.exe 34 PID 2792 wrote to memory of 2020 2792 jluzw.exe 34 PID 2792 wrote to memory of 2020 2792 jluzw.exe 34 PID 2792 wrote to memory of 2020 2792 jluzw.exe 34 PID 2792 wrote to memory of 2020 2792 jluzw.exe 34 PID 2020 wrote to memory of 2872 2020 rundll32.exe 35 PID 2020 wrote to memory of 2872 2020 rundll32.exe 35 PID 2020 wrote to memory of 2872 2020 rundll32.exe 35 PID 2020 wrote to memory of 2872 2020 rundll32.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe"C:\Users\Admin\AppData\Local\Temp\a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2360 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\jluzw.exe "C:\Users\Admin\AppData\Local\Temp\a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2672 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- Runs ping.exe
PID:2164
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C:\Users\Admin\AppData\Local\Temp\jluzw.exeC:\Users\Admin\AppData\Local\Temp\\jluzw.exe "C:\Users\Admin\AppData\Local\Temp\a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe"3⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2792 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\zxyvq\htkdczoy.tdh",crc32 C:\Users\Admin\AppData\Local\Temp\jluzw.exe4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020 -
\??\c:\windows\SysWOW64\taskkill.exetaskkill /f /im attrib.exe5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2872
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
57KB
MD52f53f49e01f09d6e6064871eec1955cd
SHA1a6e1a6e5c2080d0fb2f7a872e3902a8a4a1a9b5f
SHA256964e4dd2532d540bb61d3c7ccc833f2358d8cd6b2eabc3a2d51183a18b59f82d
SHA5122cb98030c3df7417c04f796f78f23f96d381871d9c7ae4a14116764e915b2e2f56b9b3a6fb76fedc50a17788de9538fc7954a7b73bf17e4be43e1fc1a06bc218
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Filesize
96KB
MD545f5c396b97e0515ba058eb429c9bb17
SHA1a5ae95c8bb720a09256c5ed85037a59e30d3f074
SHA2560ebbeb660e3fe67a84eb099cfebe66b76f914bf35d3ef760c188cfa9015996f4
SHA5122d23edca9678efa406c098693595b04b81d27c93b8c864066fcac39ddf786a43ed820d9916f4a3816429eb1e96e43752e003cbf7aca596a8b877737b2c34d084