modiloader | 57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 23:55

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General

Target

57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe
Size

90KB
MD5

a624ac8aff4771dabb0e735e25758892
SHA1

8ded256b8182f5273244a1680e39d0420e6d5898
SHA256

57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1
SHA512

a9708378d8470b1a0c1400fff7e440ba2def4b18704fea5710b168e450e5b17064f85d6582c9243920745ad2ab2368f2e6da8144aec2baf9788df5c1e07ee0f8
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDf:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE35

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/2288-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2288-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2288-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2288-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe

Executes dropped EXE 3 IoCs

pid	Process
2680	csrsll.exe
3736	csrsll.exe
2288	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-1-5-21-2437139445-1151884604-3026847218-1000\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 4904 set thread context of 2428	4904	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	88
PID 2680 set thread context of 3736	2680	csrsll.exe	100
PID 2680 set thread context of 2288	2680	csrsll.exe	101

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4904-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4904-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2428-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2428-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2428-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4904-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b76-29.dat	upx
behavioral2/memory/2428-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2680-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2680-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2288-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2288-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2288-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2680-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2288-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2288-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2428-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3736-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2288-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4904	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe
2428	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe
2680	csrsll.exe
3736	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 2428	4904	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	88
PID 4904 wrote to memory of 2428	4904	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	88
PID 4904 wrote to memory of 2428	4904	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	88
PID 4904 wrote to memory of 2428	4904	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	88
PID 4904 wrote to memory of 2428	4904	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	88
PID 4904 wrote to memory of 2428	4904	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	88
PID 4904 wrote to memory of 2428	4904	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	88
PID 4904 wrote to memory of 2428	4904	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	88
PID 2428 wrote to memory of 4960	2428	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	89
PID 2428 wrote to memory of 4960	2428	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	89
PID 2428 wrote to memory of 4960	2428	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	89
PID 4960 wrote to memory of 4196	4960	cmd.exe	93
PID 4960 wrote to memory of 4196	4960	cmd.exe	93
PID 4960 wrote to memory of 4196	4960	cmd.exe	93
PID 2428 wrote to memory of 2680	2428	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	94
PID 2428 wrote to memory of 2680	2428	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	94
PID 2428 wrote to memory of 2680	2428	57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe	94
PID 2680 wrote to memory of 3736	2680	csrsll.exe	100
PID 2680 wrote to memory of 3736	2680	csrsll.exe	100
PID 2680 wrote to memory of 3736	2680	csrsll.exe	100
PID 2680 wrote to memory of 3736	2680	csrsll.exe	100
PID 2680 wrote to memory of 3736	2680	csrsll.exe	100
PID 2680 wrote to memory of 3736	2680	csrsll.exe	100
PID 2680 wrote to memory of 3736	2680	csrsll.exe	100
PID 2680 wrote to memory of 3736	2680	csrsll.exe	100
PID 2680 wrote to memory of 2288	2680	csrsll.exe	101
PID 2680 wrote to memory of 2288	2680	csrsll.exe	101
PID 2680 wrote to memory of 2288	2680	csrsll.exe	101
PID 2680 wrote to memory of 2288	2680	csrsll.exe	101
PID 2680 wrote to memory of 2288	2680	csrsll.exe	101
PID 2680 wrote to memory of 2288	2680	csrsll.exe	101
PID 2680 wrote to memory of 2288	2680	csrsll.exe	101
PID 2680 wrote to memory of 2288	2680	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe
"C:\Users\Admin\AppData\Local\Temp\57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Users\Admin\AppData\Local\Temp\57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe
  "C:\Users\Admin\AppData\Local\Temp\57ce9771ad9e2f1bbb9aa0f1925a4721b44c37c64d02ad262feafd6ffe7122f1.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2428
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PLMXU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4960
  - - 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:4196
- - 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:2680
  - - 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:3736
  - - 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:2288

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\PLMXU.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
987b17476d296ac05500b130818b21f4

SHA1
3039c892aa675d7425738e18f886ce49c0b7052a

SHA256
3abeb8f619b71b2bb368885051632009e0d352b1ea4854ec4c173936fb589097

SHA512
0aa635da00fe6c4b95e4c95bae7b8f5cc812d1ea286caf3944b45abf9d1e73d540c6edd543ecc712b2c2bd67bb069746bb40ccbf662984a80dfac0aa962e48bd

Download Submit
memory/2288-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2288-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2288-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2288-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2288-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2288-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2428-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2428-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2428-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2428-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2428-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2428-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2680-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2680-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2680-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3736-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4904-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4904-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/4904-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4904-4-0x00000000022E0000-0x00000000022E2000-memory.dmp

Filesize
8KB

Download
memory/4904-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4904-3-0x00000000022D0000-0x00000000022D2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads