modiloader | 1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96

Analysis

max time kernel
118s
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
16-12-2024 15:41

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General

Target

1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe
Size

90KB
MD5

b566fd1b004f24cc3a9988657023c160
SHA1

f188304c89c62d4ec5145dae837bf069abd6c726
SHA256

1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96
SHA512

1b75cdcf934e9251552d4a18d428d7662895ee7f7d589797c618d74649f761b715a5d99cd6d5b65d188e6f0e72001612f3c2a26989847ef68113241fc139d309
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/4512-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4512-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4512-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4512-63-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe

Executes dropped EXE 3 IoCs

pid	Process
3116	csrsll.exe
4544	csrsll.exe
4512	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-1-5-21-4089630652-1596403869-279772308-1000\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 3772 set thread context of 2144	3772	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	82
PID 3116 set thread context of 4544	3116	csrsll.exe	92
PID 3116 set thread context of 4512	3116	csrsll.exe	93

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3772-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3772-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2144-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3772-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2144-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2144-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b99-30.dat	upx
behavioral2/memory/3116-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2144-41-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3116-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3116-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4512-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4512-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4512-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3116-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4512-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4512-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2144-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4544-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4512-63-0x0000000000400000-0x0000000000414000-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	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe
Token: SeDebugPrivilege	4544	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3772	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe
2144	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe
3116	csrsll.exe
4544	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3772 wrote to memory of 2144	3772	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	82
PID 3772 wrote to memory of 2144	3772	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	82
PID 3772 wrote to memory of 2144	3772	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	82
PID 3772 wrote to memory of 2144	3772	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	82
PID 3772 wrote to memory of 2144	3772	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	82
PID 3772 wrote to memory of 2144	3772	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	82
PID 3772 wrote to memory of 2144	3772	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	82
PID 3772 wrote to memory of 2144	3772	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	82
PID 2144 wrote to memory of 3844	2144	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	83
PID 2144 wrote to memory of 3844	2144	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	83
PID 2144 wrote to memory of 3844	2144	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	83
PID 3844 wrote to memory of 728	3844	cmd.exe	86
PID 3844 wrote to memory of 728	3844	cmd.exe	86
PID 3844 wrote to memory of 728	3844	cmd.exe	86
PID 2144 wrote to memory of 3116	2144	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	87
PID 2144 wrote to memory of 3116	2144	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	87
PID 2144 wrote to memory of 3116	2144	1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe	87
PID 3116 wrote to memory of 4544	3116	csrsll.exe	92
PID 3116 wrote to memory of 4544	3116	csrsll.exe	92
PID 3116 wrote to memory of 4544	3116	csrsll.exe	92
PID 3116 wrote to memory of 4544	3116	csrsll.exe	92
PID 3116 wrote to memory of 4544	3116	csrsll.exe	92
PID 3116 wrote to memory of 4544	3116	csrsll.exe	92
PID 3116 wrote to memory of 4544	3116	csrsll.exe	92
PID 3116 wrote to memory of 4544	3116	csrsll.exe	92
PID 3116 wrote to memory of 4512	3116	csrsll.exe	93
PID 3116 wrote to memory of 4512	3116	csrsll.exe	93
PID 3116 wrote to memory of 4512	3116	csrsll.exe	93
PID 3116 wrote to memory of 4512	3116	csrsll.exe	93
PID 3116 wrote to memory of 4512	3116	csrsll.exe	93
PID 3116 wrote to memory of 4512	3116	csrsll.exe	93
PID 3116 wrote to memory of 4512	3116	csrsll.exe	93
PID 3116 wrote to memory of 4512	3116	csrsll.exe	93

C:\Users\Admin\AppData\Local\Temp\1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe
"C:\Users\Admin\AppData\Local\Temp\1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3772
- C:\Users\Admin\AppData\Local\Temp\1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe
  "C:\Users\Admin\AppData\Local\Temp\1830a2a89c11ebab6aae43cd9f05b693534e806b3fef3d2a75d68e848ca16b96N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2144
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RUFKP.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3844
  - - 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:728
- - 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:3116
  - - 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:4544
  - - 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:4512

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\RUFKP.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
82ef9d62e11d2db2e3a23fc63778bc06

SHA1
5c5baa53a315b6fd0e66fed4ab7ae9908d1a9ea8

SHA256
956912364caa69fd59872e7df1693f3f6e899adbded9c59cd993578603e5aaef

SHA512
20ed5a778ed8b759154e08e393f83befcbcf328c0556cbd093d210f2ee0590b6d19ff19c89f40b0836d426c7570803b1bff7071998306b4096a81eefae43245c

Download Submit
memory/2144-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2144-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2144-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2144-41-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2144-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2144-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3116-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3116-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3116-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3116-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3772-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3772-7-0x0000000002A80000-0x0000000002A82000-memory.dmp

Filesize
8KB

Download
memory/3772-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3772-6-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/3772-3-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/3772-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3772-4-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/4512-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4544-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads