modiloader | 8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08/12/2024, 00:24

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General

Target

8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe
Size

90KB
MD5

c1c8f1d9e6e7f6e58e042c55f8b70211
SHA1

beb6749b1867ccf67fb126aa468d9a19486d8902
SHA256

8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c
SHA512

1abbe92c1b5a29cc309de4f892090d08a15ecb94d4ba0fc4b79fd0715f77e99f56289ac74a911c9175e8dc146dd2492e4081afc5f38f550e86d12d2e04cc942c
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDB:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3X

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/3136-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3136-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3136-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3136-62-0x0000000000400000-0x0000000000414000-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	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe

Executes dropped EXE 3 IoCs

pid	Process
4896	csrsll.exe
712	csrsll.exe
3136	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 3940 set thread context of 4952	3940	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	90
PID 4896 set thread context of 712	4896	csrsll.exe	102
PID 4896 set thread context of 3136	4896	csrsll.exe	103

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3940-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3940-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4952-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4952-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3940-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4952-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c99-29.dat	upx
behavioral2/memory/4952-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4896-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4896-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3136-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3136-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3136-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3136-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3136-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4896-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4952-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/712-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3136-62-0x0000000000400000-0x0000000000414000-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	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe
Token: SeDebugPrivilege	712	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3940	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe
4952	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe
4896	csrsll.exe
712	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 4952	3940	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	90
PID 3940 wrote to memory of 4952	3940	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	90
PID 3940 wrote to memory of 4952	3940	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	90
PID 3940 wrote to memory of 4952	3940	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	90
PID 3940 wrote to memory of 4952	3940	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	90
PID 3940 wrote to memory of 4952	3940	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	90
PID 3940 wrote to memory of 4952	3940	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	90
PID 3940 wrote to memory of 4952	3940	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	90
PID 4952 wrote to memory of 4948	4952	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	91
PID 4952 wrote to memory of 4948	4952	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	91
PID 4952 wrote to memory of 4948	4952	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	91
PID 4948 wrote to memory of 2824	4948	cmd.exe	95
PID 4948 wrote to memory of 2824	4948	cmd.exe	95
PID 4948 wrote to memory of 2824	4948	cmd.exe	95
PID 4952 wrote to memory of 4896	4952	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	96
PID 4952 wrote to memory of 4896	4952	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	96
PID 4952 wrote to memory of 4896	4952	8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe	96
PID 4896 wrote to memory of 712	4896	csrsll.exe	102
PID 4896 wrote to memory of 712	4896	csrsll.exe	102
PID 4896 wrote to memory of 712	4896	csrsll.exe	102
PID 4896 wrote to memory of 712	4896	csrsll.exe	102
PID 4896 wrote to memory of 712	4896	csrsll.exe	102
PID 4896 wrote to memory of 712	4896	csrsll.exe	102
PID 4896 wrote to memory of 712	4896	csrsll.exe	102
PID 4896 wrote to memory of 712	4896	csrsll.exe	102
PID 4896 wrote to memory of 3136	4896	csrsll.exe	103
PID 4896 wrote to memory of 3136	4896	csrsll.exe	103
PID 4896 wrote to memory of 3136	4896	csrsll.exe	103
PID 4896 wrote to memory of 3136	4896	csrsll.exe	103
PID 4896 wrote to memory of 3136	4896	csrsll.exe	103
PID 4896 wrote to memory of 3136	4896	csrsll.exe	103
PID 4896 wrote to memory of 3136	4896	csrsll.exe	103
PID 4896 wrote to memory of 3136	4896	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe
"C:\Users\Admin\AppData\Local\Temp\8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3940
- C:\Users\Admin\AppData\Local\Temp\8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe
  "C:\Users\Admin\AppData\Local\Temp\8091803c5f4b3b1faef8325575a6c603c7c3df0130bfa1100e077a4229da785c.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4952
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NQBGL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4948
  - - 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:2824
- - 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:4896
  - - 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:712
  - - 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:3136

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
1eb26535ce77d69e617b1c633994fb05

SHA1
6a4d3fcafe2b57a4fab457c446237637017d2fab

SHA256
43c921ae2a51f2f485048fce8ee104640d1e9261aa033aaf9841f5a18fa77734

SHA512
cc28862e7d0ce3437582c9cc2ded43ab7e1c46ea0e9d5dc057bcffd5a413478d1763c8ec4e69286234d59786a8ee5a314361f0fed1494546ef3d9dc45225a1db

Download Submit
memory/712-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3136-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3136-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3136-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3136-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3136-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3136-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3940-6-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/3940-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3940-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3940-4-0x0000000002A20000-0x0000000002A22000-memory.dmp

Filesize
8KB

Download
memory/3940-3-0x0000000002A10000-0x0000000002A12000-memory.dmp

Filesize
8KB

Download
memory/3940-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4896-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4896-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4896-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4952-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4952-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4952-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4952-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4952-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4952-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads