modiloader | a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bf

Analysis

max time kernel
120s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2024 00:42

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General

Target

a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe
Size

90KB
MD5

e4257bc15b30bd49d79cd6fa9a6c9ff0
SHA1

5a20a03df7cbc35a856622cfa56efbb4a6993757
SHA256

a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bf
SHA512

103a8bf5814378ecb4aafb947f4a254dd48270169792d26452a297dc9472261aa2535aba89a038b377662041aa281d077d4feeff7887a819e414165831ff4dca
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/4008-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4008-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4008-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4008-64-0x0000000000400000-0x0000000000414000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe

Executes dropped EXE 3 IoCs

pid	Process
3468	csrsll.exe
4648	csrsll.exe
4008	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-1-5-21-2045521122-590294423-3465680274-1000\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 4036 set thread context of 5052	4036	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	88
PID 3468 set thread context of 4648	3468	csrsll.exe	99
PID 3468 set thread context of 4008	3468	csrsll.exe	100

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4036-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4036-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5052-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5052-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4036-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5052-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cad-29.dat	upx
behavioral2/memory/3468-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5052-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3468-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4008-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4008-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3468-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4008-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4008-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4008-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3468-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5052-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4648-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4008-64-0x0000000000400000-0x0000000000414000-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	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.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	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe
Token: SeDebugPrivilege	4648	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4036	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe
5052	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe
3468	csrsll.exe
4648	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4036 wrote to memory of 5052	4036	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	88
PID 4036 wrote to memory of 5052	4036	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	88
PID 4036 wrote to memory of 5052	4036	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	88
PID 4036 wrote to memory of 5052	4036	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	88
PID 4036 wrote to memory of 5052	4036	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	88
PID 4036 wrote to memory of 5052	4036	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	88
PID 4036 wrote to memory of 5052	4036	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	88
PID 4036 wrote to memory of 5052	4036	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	88
PID 5052 wrote to memory of 4484	5052	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	89
PID 5052 wrote to memory of 4484	5052	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	89
PID 5052 wrote to memory of 4484	5052	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	89
PID 4484 wrote to memory of 2772	4484	cmd.exe	94
PID 4484 wrote to memory of 2772	4484	cmd.exe	94
PID 4484 wrote to memory of 2772	4484	cmd.exe	94
PID 5052 wrote to memory of 3468	5052	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	95
PID 5052 wrote to memory of 3468	5052	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	95
PID 5052 wrote to memory of 3468	5052	a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe	95
PID 3468 wrote to memory of 4648	3468	csrsll.exe	99
PID 3468 wrote to memory of 4648	3468	csrsll.exe	99
PID 3468 wrote to memory of 4648	3468	csrsll.exe	99
PID 3468 wrote to memory of 4648	3468	csrsll.exe	99
PID 3468 wrote to memory of 4648	3468	csrsll.exe	99
PID 3468 wrote to memory of 4648	3468	csrsll.exe	99
PID 3468 wrote to memory of 4648	3468	csrsll.exe	99
PID 3468 wrote to memory of 4648	3468	csrsll.exe	99
PID 3468 wrote to memory of 4008	3468	csrsll.exe	100
PID 3468 wrote to memory of 4008	3468	csrsll.exe	100
PID 3468 wrote to memory of 4008	3468	csrsll.exe	100
PID 3468 wrote to memory of 4008	3468	csrsll.exe	100
PID 3468 wrote to memory of 4008	3468	csrsll.exe	100
PID 3468 wrote to memory of 4008	3468	csrsll.exe	100
PID 3468 wrote to memory of 4008	3468	csrsll.exe	100
PID 3468 wrote to memory of 4008	3468	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe
"C:\Users\Admin\AppData\Local\Temp\a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4036
- C:\Users\Admin\AppData\Local\Temp\a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe
  "C:\Users\Admin\AppData\Local\Temp\a69a79ae910340a1c846816e8c8acf7fb3d5f56387f049866c2b307ca59767bfN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5052
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MKOJR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4484
  - - 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:2772
- - 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:3468
  - - 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:4648
  - - 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:4008

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\MKOJR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
dca3e6c245dc0f0edb65ccfd47936d64

SHA1
9e2c5de67ed9515fbb6b2b272c3fa75aadb486ba

SHA256
bfbcbcce0957b90839687d730908b24d0774fce03268d0edad48e4a7ba7a4b0b

SHA512
e43c286d32f69292c2299af1ec81174028326f9e0dd12cd77d14b7104c065b5c50ec2d613c3a556e7f77327a96d1c5e4f8dd75d5086aa518a6c068d9fe940f80

Download Submit
memory/3468-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3468-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3468-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3468-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4008-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4008-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4008-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4008-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4008-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4008-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4036-5-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/4036-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4036-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4036-6-0x0000000002A80000-0x0000000002A82000-memory.dmp

Filesize
8KB

Download
memory/4036-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4036-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4648-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5052-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5052-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5052-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5052-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5052-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads