e380bdb7e1a419c846f4cc718095cfb944fa114d81012a139b424784e4a32091

Analysis

max time kernel
119s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/09/2024, 07:10

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General

Target

cd64543b60da4628be4b8bc7b4004f80N.exe
Size

308KB
MD5

cd64543b60da4628be4b8bc7b4004f80
SHA1

a3d7516da61656645be1d1abeb17604b23f74774
SHA256

e380bdb7e1a419c846f4cc718095cfb944fa114d81012a139b424784e4a32091
SHA512

dea529f3987c53f41ee8b23b1bc30fb2b53da774b2a443a70db51e47bcdb73f5f21a30a908aad64dbc6ac99e4c4d27858d8b81b845e3bc1162c8f88487a0d5b7
SSDEEP

3072:/c3sBG7mXh7m/zZM3jAbNOM6CNtDCZFL:E3sBz0Z4Mj72F

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
56772	csrsll.exe
140996	csrsll.exe
141084	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
56492	cd64543b60da4628be4b8bc7b4004f80N.exe
56492	cd64543b60da4628be4b8bc7b4004f80N.exe
56492	cd64543b60da4628be4b8bc7b4004f80N.exe
56492	cd64543b60da4628be4b8bc7b4004f80N.exe
56492	cd64543b60da4628be4b8bc7b4004f80N.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/56492-73918-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/56492-73920-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/56492-73924-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/56492-73925-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/56492-73926-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/56492-112639-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/56492-147838-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/140996-147846-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 56492	2736	cd64543b60da4628be4b8bc7b4004f80N.exe	28
PID 56772 set thread context of 140996	56772	csrsll.exe	34
PID 56772 set thread context of 141084	56772	csrsll.exe	35

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

System Information Discovery
T1082

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cd64543b60da4628be4b8bc7b4004f80N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cd64543b60da4628be4b8bc7b4004f80N.exe

Suspicious use of AdjustPrivilegeToken 58 IoCs

description	pid	Process
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe
Token: SeDebugPrivilege	140996	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2736	cd64543b60da4628be4b8bc7b4004f80N.exe
56492	cd64543b60da4628be4b8bc7b4004f80N.exe
56772	csrsll.exe
140996	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 56492	2736	cd64543b60da4628be4b8bc7b4004f80N.exe	28
PID 2736 wrote to memory of 56492	2736	cd64543b60da4628be4b8bc7b4004f80N.exe	28
PID 2736 wrote to memory of 56492	2736	cd64543b60da4628be4b8bc7b4004f80N.exe	28
PID 2736 wrote to memory of 56492	2736	cd64543b60da4628be4b8bc7b4004f80N.exe	28
PID 2736 wrote to memory of 56492	2736	cd64543b60da4628be4b8bc7b4004f80N.exe	28
PID 2736 wrote to memory of 56492	2736	cd64543b60da4628be4b8bc7b4004f80N.exe	28
PID 2736 wrote to memory of 56492	2736	cd64543b60da4628be4b8bc7b4004f80N.exe	28
PID 2736 wrote to memory of 56492	2736	cd64543b60da4628be4b8bc7b4004f80N.exe	28
PID 56492 wrote to memory of 56632	56492	cd64543b60da4628be4b8bc7b4004f80N.exe	29
PID 56492 wrote to memory of 56632	56492	cd64543b60da4628be4b8bc7b4004f80N.exe	29
PID 56492 wrote to memory of 56632	56492	cd64543b60da4628be4b8bc7b4004f80N.exe	29
PID 56492 wrote to memory of 56632	56492	cd64543b60da4628be4b8bc7b4004f80N.exe	29
PID 56632 wrote to memory of 56688	56632	cmd.exe	31
PID 56632 wrote to memory of 56688	56632	cmd.exe	31
PID 56632 wrote to memory of 56688	56632	cmd.exe	31
PID 56632 wrote to memory of 56688	56632	cmd.exe	31
PID 56492 wrote to memory of 56772	56492	cd64543b60da4628be4b8bc7b4004f80N.exe	32
PID 56492 wrote to memory of 56772	56492	cd64543b60da4628be4b8bc7b4004f80N.exe	32
PID 56492 wrote to memory of 56772	56492	cd64543b60da4628be4b8bc7b4004f80N.exe	32
PID 56492 wrote to memory of 56772	56492	cd64543b60da4628be4b8bc7b4004f80N.exe	32
PID 56772 wrote to memory of 140996	56772	csrsll.exe	34
PID 56772 wrote to memory of 140996	56772	csrsll.exe	34
PID 56772 wrote to memory of 140996	56772	csrsll.exe	34
PID 56772 wrote to memory of 140996	56772	csrsll.exe	34
PID 56772 wrote to memory of 140996	56772	csrsll.exe	34
PID 56772 wrote to memory of 140996	56772	csrsll.exe	34
PID 56772 wrote to memory of 140996	56772	csrsll.exe	34
PID 56772 wrote to memory of 140996	56772	csrsll.exe	34
PID 56772 wrote to memory of 141084	56772	csrsll.exe	35
PID 56772 wrote to memory of 141084	56772	csrsll.exe	35
PID 56772 wrote to memory of 141084	56772	csrsll.exe	35
PID 56772 wrote to memory of 141084	56772	csrsll.exe	35
PID 56772 wrote to memory of 141084	56772	csrsll.exe	35
PID 56772 wrote to memory of 141084	56772	csrsll.exe	35
PID 56772 wrote to memory of 141084	56772	csrsll.exe	35
PID 56772 wrote to memory of 141084	56772	csrsll.exe	35

C:\Users\Admin\AppData\Local\Temp\cd64543b60da4628be4b8bc7b4004f80N.exe
"C:\Users\Admin\AppData\Local\Temp\cd64543b60da4628be4b8bc7b4004f80N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Users\Admin\AppData\Local\Temp\cd64543b60da4628be4b8bc7b4004f80N.exe
  "C:\Users\Admin\AppData\Local\Temp\cd64543b60da4628be4b8bc7b4004f80N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:56492
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\EVNJE.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:56632
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:56688
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:56772
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:140996
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:141084

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
308KB

MD5
b8dc617eb62438d79aaa2fcc9c929bd0

SHA1
35fd1c3e957e02213b7525af1c39b030ce61d8fa

SHA256
17d9d8b45368d07ff10b22336769d0da976d5adc9384458021e5a70e565e2fbc

SHA512
d01796deb28fcd17e3e5f0469587ce3697233346eff90037a5ac0277cbf3a464a83a74961eab626d81ab70872767303a607f35eb2b0f792faab5652f1f6ec460

Download Submit
memory/2736-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2736-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/56492-73918-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/56492-73922-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/56492-73924-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/56492-73925-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/56492-73926-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/56492-73920-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/56492-73916-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/56492-112639-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/56492-147838-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/56772-73966-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/140996-147846-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads