modiloader | 17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbd

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
18-12-2024 03:14

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General

Target

17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe
Size

90KB
MD5

25ea53fed933f9de9e2dfc3567d83220
SHA1

e3d45a97407fe8ed5e2dccb97b8466dd128c24d1
SHA256

17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbd
SHA512

c23b9c8030503f5ec5c24ce59be63ec09a071ec0acc230cb8d14c2423fb2ca7d23c7d57d25421b557f1ae809eba0c4345ce7bf2af92cd6edad6ac3f8b0b0b47d
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDj:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3R

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/4656-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4656-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4656-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4656-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe

Executes dropped EXE 3 IoCs

pid	Process
3964	csrsll.exe
2760	csrsll.exe
4656	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-1-5-21-2878641211-696417878-3864914810-1000\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 212 set thread context of 3360	212	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	86
PID 3964 set thread context of 2760	3964	csrsll.exe	103
PID 3964 set thread context of 4656	3964	csrsll.exe	104

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/212-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/212-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3360-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3360-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3360-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/212-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b74-29.dat	upx
behavioral2/memory/3360-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3964-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3964-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4656-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4656-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3964-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4656-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4656-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4656-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3360-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2760-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4656-62-0x0000000000400000-0x0000000000414000-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	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	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe
Token: SeDebugPrivilege	2760	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
212	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe
3360	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe
3964	csrsll.exe
2760	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 212 wrote to memory of 3360	212	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	86
PID 212 wrote to memory of 3360	212	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	86
PID 212 wrote to memory of 3360	212	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	86
PID 212 wrote to memory of 3360	212	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	86
PID 212 wrote to memory of 3360	212	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	86
PID 212 wrote to memory of 3360	212	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	86
PID 212 wrote to memory of 3360	212	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	86
PID 212 wrote to memory of 3360	212	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	86
PID 3360 wrote to memory of 4068	3360	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	91
PID 3360 wrote to memory of 4068	3360	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	91
PID 3360 wrote to memory of 4068	3360	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	91
PID 4068 wrote to memory of 4832	4068	cmd.exe	95
PID 4068 wrote to memory of 4832	4068	cmd.exe	95
PID 4068 wrote to memory of 4832	4068	cmd.exe	95
PID 3360 wrote to memory of 3964	3360	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	96
PID 3360 wrote to memory of 3964	3360	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	96
PID 3360 wrote to memory of 3964	3360	17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe	96
PID 3964 wrote to memory of 2760	3964	csrsll.exe	103
PID 3964 wrote to memory of 2760	3964	csrsll.exe	103
PID 3964 wrote to memory of 2760	3964	csrsll.exe	103
PID 3964 wrote to memory of 2760	3964	csrsll.exe	103
PID 3964 wrote to memory of 2760	3964	csrsll.exe	103
PID 3964 wrote to memory of 2760	3964	csrsll.exe	103
PID 3964 wrote to memory of 2760	3964	csrsll.exe	103
PID 3964 wrote to memory of 2760	3964	csrsll.exe	103
PID 3964 wrote to memory of 4656	3964	csrsll.exe	104
PID 3964 wrote to memory of 4656	3964	csrsll.exe	104
PID 3964 wrote to memory of 4656	3964	csrsll.exe	104
PID 3964 wrote to memory of 4656	3964	csrsll.exe	104
PID 3964 wrote to memory of 4656	3964	csrsll.exe	104
PID 3964 wrote to memory of 4656	3964	csrsll.exe	104
PID 3964 wrote to memory of 4656	3964	csrsll.exe	104
PID 3964 wrote to memory of 4656	3964	csrsll.exe	104

C:\Users\Admin\AppData\Local\Temp\17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe
"C:\Users\Admin\AppData\Local\Temp\17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:212
- C:\Users\Admin\AppData\Local\Temp\17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe
  "C:\Users\Admin\AppData\Local\Temp\17d51a2e3a8321b6e1199627410e5014b6566fca8610d159d98caba03bdcfbbdN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3360
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OLLXT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4068
  - - 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:4832
- - 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:3964
  - - 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:2760
  - - 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:4656

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\OLLXT.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
c905799cd8fa1dba51b62f99eb78689d

SHA1
a80bc7052952ebe823fb5553913dc70947894074

SHA256
927e9177bf856bade3473b80df14a429cfc5fcf959c1a07c3853a9305598a3f1

SHA512
47ec1bd638b91e5b9548eef945ccfd5b91f59a7f25979e02c615e6b8c5e67abb67d583077412ef571c0bb972afde6371735de649acdbfd03b60c7976d858e5e1

Download Submit
memory/212-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/212-5-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/212-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/212-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/212-3-0x0000000002A20000-0x0000000002A22000-memory.dmp

Filesize
8KB

Download
memory/212-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2760-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3360-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3360-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3360-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3360-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3360-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3360-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3964-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3964-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3964-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4656-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4656-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4656-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4656-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4656-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4656-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads