modiloader | 513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43

Analysis

max time kernel
119s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 00:46

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General

Target

513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe
Size

90KB
MD5

ba99f929719246d68aad3d56d4a4e8b9
SHA1

7b8da0da9aa6073afc4e072a47fe5babcdc78d18
SHA256

513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43
SHA512

37330ac79d89730f0f476d6b9a66466b74a09984583cb5c7699910ee74de29c932c2680650f1a46bcb4428babcd71f2b529e73955e761ed535991dc8407b2855
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD9:0wjZQJvzZsgsW6/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 3 IoCs

resource	yara_rule
behavioral2/memory/5064-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5064-60-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5064-62-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe

Executes dropped EXE 3 IoCs

pid	Process
412	csrsll.exe
1836	csrsll.exe
5064	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-1-5-21-493223053-2004649691-1575712786-1000\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 4832 set thread context of 220	4832	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	85
PID 412 set thread context of 1836	412	csrsll.exe	100
PID 412 set thread context of 5064	412	csrsll.exe	101

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4832-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4832-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/220-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/220-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4832-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/220-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000200000001e748-29.dat	upx
behavioral2/memory/220-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/412-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/412-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5064-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/412-53-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5064-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5064-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5064-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5064-60-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/220-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1836-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5064-62-0x0000000000400000-0x0000000000414000-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	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	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe
Token: SeDebugPrivilege	1836	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4832	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe
220	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe
412	csrsll.exe
1836	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4832 wrote to memory of 220	4832	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	85
PID 4832 wrote to memory of 220	4832	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	85
PID 4832 wrote to memory of 220	4832	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	85
PID 4832 wrote to memory of 220	4832	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	85
PID 4832 wrote to memory of 220	4832	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	85
PID 4832 wrote to memory of 220	4832	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	85
PID 4832 wrote to memory of 220	4832	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	85
PID 4832 wrote to memory of 220	4832	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	85
PID 220 wrote to memory of 4208	220	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	86
PID 220 wrote to memory of 4208	220	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	86
PID 220 wrote to memory of 4208	220	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	86
PID 4208 wrote to memory of 1168	4208	cmd.exe	90
PID 4208 wrote to memory of 1168	4208	cmd.exe	90
PID 4208 wrote to memory of 1168	4208	cmd.exe	90
PID 220 wrote to memory of 412	220	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	91
PID 220 wrote to memory of 412	220	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	91
PID 220 wrote to memory of 412	220	513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe	91
PID 412 wrote to memory of 1836	412	csrsll.exe	100
PID 412 wrote to memory of 1836	412	csrsll.exe	100
PID 412 wrote to memory of 1836	412	csrsll.exe	100
PID 412 wrote to memory of 1836	412	csrsll.exe	100
PID 412 wrote to memory of 1836	412	csrsll.exe	100
PID 412 wrote to memory of 1836	412	csrsll.exe	100
PID 412 wrote to memory of 1836	412	csrsll.exe	100
PID 412 wrote to memory of 1836	412	csrsll.exe	100
PID 412 wrote to memory of 5064	412	csrsll.exe	101
PID 412 wrote to memory of 5064	412	csrsll.exe	101
PID 412 wrote to memory of 5064	412	csrsll.exe	101
PID 412 wrote to memory of 5064	412	csrsll.exe	101
PID 412 wrote to memory of 5064	412	csrsll.exe	101
PID 412 wrote to memory of 5064	412	csrsll.exe	101
PID 412 wrote to memory of 5064	412	csrsll.exe	101
PID 412 wrote to memory of 5064	412	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe
"C:\Users\Admin\AppData\Local\Temp\513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4832
- C:\Users\Admin\AppData\Local\Temp\513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe
  "C:\Users\Admin\AppData\Local\Temp\513e8b3f1e100de1c5f5c26f3f748ec540ff6dabcea774051b8dc3ef8f37bb43.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:220
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WKXIG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4208
  - - 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:1168
- - 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:412
  - - 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:1836
  - - 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:5064

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\WKXIG.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
d3cdd55f18c39c94dd149ec0f616a06c

SHA1
b903031af77f1b489e0ac42e63510d8c5fd8b0f1

SHA256
64112c6ba69996c8554f07b01783c160b91c3d6bd5cdcaaaf9bac378b896b8eb

SHA512
0091312eea035aef4f1b73aef139144b9a0b2c487dab4742c6703afccbb5b29f54a266e01efa11f387a527c62bef7fa36e0238e7a93398a984b1ee3448649601

Download Submit
memory/220-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/220-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/220-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/220-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/220-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/412-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/412-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/412-53-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1836-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4832-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4832-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4832-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/4832-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4832-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4832-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5064-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5064-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5064-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5064-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5064-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5064-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads