modiloader | 8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02/12/2024, 01:09

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General

Target

8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe
Size

90KB
MD5

5f7aa2344b0be07fc6861913079af924
SHA1

089ca4f72aa8d6bc473984e5c33d59fcb1ae0e9b
SHA256

8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c
SHA512

41af1103363b9fe7e2bc80f1f1d0f305dcefe05b39c0884d116d71aeb8215f0df7807d0da4f7d4827df8a837888728108f85c649b97d672efca64d009a29ae1a
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDJ:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE33

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Modiloader family
modiloader

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/1084-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1084-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1084-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1084-63-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe

Executes dropped EXE 3 IoCs

pid	Process
756	csrsll.exe
3508	csrsll.exe
1084	csrsll.exe

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-1-5-21-2045521122-590294423-3465680274-1000\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 3964 set thread context of 4620	3964	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	83
PID 756 set thread context of 3508	756	csrsll.exe	95
PID 756 set thread context of 1084	756	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3964-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3964-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4620-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4620-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4620-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3964-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023ca0-29.dat	upx
behavioral2/memory/4620-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/756-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/756-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1084-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1084-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1084-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1084-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/756-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1084-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4620-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3508-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1084-63-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.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	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe
Token: SeDebugPrivilege	3508	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3964	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe
4620	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe
756	csrsll.exe
3508	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3964 wrote to memory of 4620	3964	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	83
PID 3964 wrote to memory of 4620	3964	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	83
PID 3964 wrote to memory of 4620	3964	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	83
PID 3964 wrote to memory of 4620	3964	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	83
PID 3964 wrote to memory of 4620	3964	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	83
PID 3964 wrote to memory of 4620	3964	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	83
PID 3964 wrote to memory of 4620	3964	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	83
PID 3964 wrote to memory of 4620	3964	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	83
PID 4620 wrote to memory of 2296	4620	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	84
PID 4620 wrote to memory of 2296	4620	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	84
PID 4620 wrote to memory of 2296	4620	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	84
PID 2296 wrote to memory of 1612	2296	cmd.exe	88
PID 2296 wrote to memory of 1612	2296	cmd.exe	88
PID 2296 wrote to memory of 1612	2296	cmd.exe	88
PID 4620 wrote to memory of 756	4620	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	89
PID 4620 wrote to memory of 756	4620	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	89
PID 4620 wrote to memory of 756	4620	8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe	89
PID 756 wrote to memory of 3508	756	csrsll.exe	95
PID 756 wrote to memory of 3508	756	csrsll.exe	95
PID 756 wrote to memory of 3508	756	csrsll.exe	95
PID 756 wrote to memory of 3508	756	csrsll.exe	95
PID 756 wrote to memory of 3508	756	csrsll.exe	95
PID 756 wrote to memory of 3508	756	csrsll.exe	95
PID 756 wrote to memory of 3508	756	csrsll.exe	95
PID 756 wrote to memory of 3508	756	csrsll.exe	95
PID 756 wrote to memory of 1084	756	csrsll.exe	96
PID 756 wrote to memory of 1084	756	csrsll.exe	96
PID 756 wrote to memory of 1084	756	csrsll.exe	96
PID 756 wrote to memory of 1084	756	csrsll.exe	96
PID 756 wrote to memory of 1084	756	csrsll.exe	96
PID 756 wrote to memory of 1084	756	csrsll.exe	96
PID 756 wrote to memory of 1084	756	csrsll.exe	96
PID 756 wrote to memory of 1084	756	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe
"C:\Users\Admin\AppData\Local\Temp\8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3964
- C:\Users\Admin\AppData\Local\Temp\8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe
  "C:\Users\Admin\AppData\Local\Temp\8d873be8995d48dc80a1e067ffb918157d211582ade25db7b1c56c1da9d0685c.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4620
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\POAIA.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2296
  - - 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:1612
- - 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:756
  - - 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:3508
  - - 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:1084

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\POAIA.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
94cf2097ce2ab75cd9b293a5b7f83ece

SHA1
3ced1bed3dd2350070f663fc32c6527fcbc052cf

SHA256
8b1a4dc06e52b6448afcf47e1bc6bee6f1011fec0061bad06e86da6971a9030c

SHA512
b6acab99f658761e8850b7c545a3373a16cd265474dc000cc26ff6a8c947b9e2786a1949ef8e387bdfd17ff9e95b1c6e2bdf9ad900150ce0b0e8dd21c695497c

Download Submit
memory/756-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/756-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/756-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1084-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1084-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1084-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1084-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1084-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1084-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3508-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3964-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3964-6-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/3964-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/3964-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3964-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3964-5-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4620-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4620-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4620-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4620-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4620-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4620-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads