6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c

Analysis

max time kernel
142s
max time network
119s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 22:31

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General

Target

6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
Size

510KB
MD5

fa2d5ff3872f6343be78a266bbc22cd7
SHA1

4bf06be74ad1423781865618c66d11b9d20aa494
SHA256

6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c
SHA512

ea606222ae25041b9102a6261b49be3ac209cd883f740de120cd5565edb9bcffe486e2a14a84c34740cdabde83441681eedf12d1a20855578062e6d0c6b0f780
SSDEEP

12288:KkheH6hZYOYrInJ0JvQNy0+wcXP46sBmbvsTlgGrLfhtjQc5:KkheahZnnJsvQNy0+wcXPkB9Tbfhtp

Score

9^/10

persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 9 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2912-0-0x0000000000400000-0x0000000000496000-memory.dmp	UPX
behavioral1/memory/2912-3-0x0000000000400000-0x0000000000496000-memory.dmp	UPX
behavioral1/memory/2912-4-0x0000000000400000-0x0000000000496000-memory.dmp	UPX
behavioral1/memory/2912-27-0x0000000000400000-0x0000000000496000-memory.dmp	UPX
\Users\Admin\AppData\Roaming\AppData\jrun32.exe	UPX
behavioral1/memory/2680-37-0x0000000000400000-0x0000000000496000-memory.dmp	UPX
behavioral1/memory/2680-41-0x0000000000400000-0x0000000000496000-memory.dmp	UPX
behavioral1/memory/2680-52-0x0000000000400000-0x0000000000496000-memory.dmp	UPX
behavioral1/memory/2680-77-0x0000000000400000-0x0000000000496000-memory.dmp	UPX

Executes dropped EXE 3 IoCs

Processes:

jrun32.exejrun32.exejrun32.exe

pid process

2680 jrun32.exe
2936 jrun32.exe
2408 jrun32.exe

pid	process
2680	jrun32.exe
2936	jrun32.exe
2408	jrun32.exe

Loads dropped DLL 2 IoCs

Processes:

6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe

pid	process
2608	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
2608	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe

UPX packed file 9 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/2912-0-0x0000000000400000-0x0000000000496000-memory.dmp	upx
behavioral1/memory/2912-3-0x0000000000400000-0x0000000000496000-memory.dmp	upx
behavioral1/memory/2912-4-0x0000000000400000-0x0000000000496000-memory.dmp	upx
behavioral1/memory/2912-27-0x0000000000400000-0x0000000000496000-memory.dmp	upx
\Users\Admin\AppData\Roaming\AppData\jrun32.exe	upx
behavioral1/memory/2680-37-0x0000000000400000-0x0000000000496000-memory.dmp	upx
behavioral1/memory/2680-41-0x0000000000400000-0x0000000000496000-memory.dmp	upx
behavioral1/memory/2680-52-0x0000000000400000-0x0000000000496000-memory.dmp	upx
behavioral1/memory/2680-77-0x0000000000400000-0x0000000000496000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\jrun32 = "C:\\Users\\Admin\\AppData\\Roaming\\AppData\\jrun32.exe -notray"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exejrun32.exe

description	pid	process	target process
PID 2912 set thread context of 2608	2912	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
PID 2680 set thread context of 2936	2680	jrun32.exe	jrun32.exe
PID 2680 set thread context of 2408	2680	jrun32.exe	jrun32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command and Scripting Interpreter
T1059

Processes:

ipconfig.exe

pid process

2868 ipconfig.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

reg.exe

pid process

1264 reg.exe

pid	process
2868	ipconfig.exe

pid	process
1264	reg.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exejrun32.exejrun32.exe

pid	process
2912	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
2608	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
2680	jrun32.exe
2936	jrun32.exe

Suspicious use of WriteProcessMemory 48 IoCs

Processes:

6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exejrun32.exejrun32.exeipconfig.execmd.exe

description	pid	process	target process
PID 2912 wrote to memory of 2608	2912	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
PID 2912 wrote to memory of 2608	2912	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
PID 2912 wrote to memory of 2608	2912	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
PID 2912 wrote to memory of 2608	2912	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
PID 2912 wrote to memory of 2608	2912	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
PID 2912 wrote to memory of 2608	2912	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
PID 2912 wrote to memory of 2608	2912	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
PID 2912 wrote to memory of 2608	2912	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
PID 2912 wrote to memory of 2608	2912	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
PID 2608 wrote to memory of 2680	2608	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe	jrun32.exe
PID 2608 wrote to memory of 2680	2608	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe	jrun32.exe
PID 2608 wrote to memory of 2680	2608	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe	jrun32.exe
PID 2608 wrote to memory of 2680	2608	6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe	jrun32.exe
PID 2680 wrote to memory of 2936	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2936	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2936	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2936	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2936	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2936	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2936	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2936	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2936	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2408	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2408	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2408	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2408	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2408	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2408	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2408	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2408	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2408	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2408	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2408	2680	jrun32.exe	jrun32.exe
PID 2680 wrote to memory of 2408	2680	jrun32.exe	jrun32.exe
PID 2936 wrote to memory of 2868	2936	jrun32.exe	ipconfig.exe
PID 2936 wrote to memory of 2868	2936	jrun32.exe	ipconfig.exe
PID 2936 wrote to memory of 2868	2936	jrun32.exe	ipconfig.exe
PID 2936 wrote to memory of 2868	2936	jrun32.exe	ipconfig.exe
PID 2936 wrote to memory of 2868	2936	jrun32.exe	ipconfig.exe
PID 2936 wrote to memory of 2868	2936	jrun32.exe	ipconfig.exe
PID 2868 wrote to memory of 1564	2868	ipconfig.exe	cmd.exe
PID 2868 wrote to memory of 1564	2868	ipconfig.exe	cmd.exe
PID 2868 wrote to memory of 1564	2868	ipconfig.exe	cmd.exe
PID 2868 wrote to memory of 1564	2868	ipconfig.exe	cmd.exe
PID 1564 wrote to memory of 1264	1564	cmd.exe	reg.exe
PID 1564 wrote to memory of 1264	1564	cmd.exe	reg.exe
PID 1564 wrote to memory of 1264	1564	cmd.exe	reg.exe
PID 1564 wrote to memory of 1264	1564	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
"C:\Users\Admin\AppData\Local\Temp\6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Users\Admin\AppData\Local\Temp\6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe
  "C:\Users\Admin\AppData\Local\Temp\6418eeb9821dcd3fbd7743e2ace2057291a3438fa6da91dbf0eaccc0624ba58c.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2608
- - C:\Users\Admin\AppData\Roaming\AppData\jrun32.exe
    C:\Users\Admin\AppData\Roaming\AppData\jrun32.exe -notray
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2680
  - - C:\Users\Admin\AppData\Roaming\AppData\jrun32.exe
      "C:\Users\Admin\AppData\Roaming\AppData\jrun32.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2936
    - - C:\Windows\SysWOW64\ipconfig.exe
        
        "C:\Windows\system32\ipconfig.exe"
        5⤵
        Gathers network information
        Suspicious use of WriteProcessMemory
        
        PID:2868
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\IVRAUYWK.bat" "
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:1564
        
        C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v jrun32 /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\AppData\jrun32.exe -notray" /f
        7⤵
        Adds Run key to start application
        Modifies registry key
        
        PID:1264
  - - C:\Users\Admin\AppData\Roaming\AppData\jrun32.exe
      "C:\Users\Admin\AppData\Roaming\AppData\jrun32.exe"
      4⤵
      Executes dropped EXE
      PID:2408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IVRAUYWK.bat

Filesize
146B

MD5
f43ed9d2c73208eded7959a9b78c7814

SHA1
d8f0db46acffd54bd87051ad8e46f73b8dd47961

SHA256
707c5b61af860c851e76c8173f36a852089f68985a25356b1e47711265cea7f6

SHA512
b06f43d4029e372a53b36df2fc3091b7b546c65074770da3adb88be3c96c4288cc0247fb7408804f96ddbb6df305f230f288aa30355bf7b22865216130671d0d

Download Submit
\Users\Admin\AppData\Roaming\AppData\jrun32.exe

Filesize
510KB

MD5
48093f582f04452916ea3b0352b52c65

SHA1
6c509648baec0d69a539b0456d4437270e9aad00

SHA256
9c6686d1733c85d9bcd8359b97bd834ddba1df2245e209be5356771fdc19230b

SHA512
843c57918cc0e90d4ba0de46235d2ca9063890e032e5a79a1d1c076f58a00db9b7107fc2c2c482a09b1f700ad5f51904dde806186a7ae44309ae6da06da15028

Download Submit
memory/2408-84-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-85-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-71-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-91-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-86-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-82-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-59-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-61-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-105-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-90-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-87-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-88-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-79-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-89-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-63-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-96-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-65-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-69-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-67-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2408-75-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2608-40-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2608-25-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2608-13-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2608-9-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2608-20-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2608-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2608-11-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2680-52-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2680-41-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2680-37-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2680-77-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2868-92-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2912-4-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2912-0-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2912-3-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2912-27-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2912-6-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2912-17-0x0000000006020000-0x00000000060B6000-memory.dmp

Filesize
600KB

Download
memory/2912-5-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2912-7-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/2912-8-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/2936-100-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download