modiloader | 2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18

Analysis

max time kernel
148s
max time network
149s
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 08:46

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General

Target

2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe
Size

90KB
MD5

d42d708f0e8e8a9a5dad7426503b03fb
SHA1

825aa9cc85ef116ba3afe3e86b54cd9810936c09
SHA256

2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18
SHA512

a93237df03de81476d6a15c1df545fb0be3332a4cbda9160f1d02a3654802729370afb88106241b55717d0dff3d8418a187a473a3b58a2ff0a1f1fe760ba193c
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD8:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3+

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/1268-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1268-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1268-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1268-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe

Executes dropped EXE 3 IoCs

pid	Process
2228	csrsll.exe
3404	csrsll.exe
1268	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-1-5-21-3227495264-2217614367-4027411560-1000\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 4876 set thread context of 3504	4876	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	86
PID 2228 set thread context of 3404	2228	csrsll.exe	95
PID 2228 set thread context of 1268	2228	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4876-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4876-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3504-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3504-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3504-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4876-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b7f-30.dat	upx
behavioral2/memory/3504-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2228-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1268-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1268-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2228-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1268-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1268-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2228-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1268-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3504-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3404-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1268-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe
Token: SeDebugPrivilege	3404	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4876	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe
3504	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe
2228	csrsll.exe
3404	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4876 wrote to memory of 3504	4876	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	86
PID 4876 wrote to memory of 3504	4876	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	86
PID 4876 wrote to memory of 3504	4876	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	86
PID 4876 wrote to memory of 3504	4876	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	86
PID 4876 wrote to memory of 3504	4876	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	86
PID 4876 wrote to memory of 3504	4876	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	86
PID 4876 wrote to memory of 3504	4876	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	86
PID 4876 wrote to memory of 3504	4876	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	86
PID 3504 wrote to memory of 5032	3504	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	88
PID 3504 wrote to memory of 5032	3504	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	88
PID 3504 wrote to memory of 5032	3504	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	88
PID 5032 wrote to memory of 4500	5032	cmd.exe	91
PID 5032 wrote to memory of 4500	5032	cmd.exe	91
PID 5032 wrote to memory of 4500	5032	cmd.exe	91
PID 3504 wrote to memory of 2228	3504	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	92
PID 3504 wrote to memory of 2228	3504	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	92
PID 3504 wrote to memory of 2228	3504	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	92
PID 2228 wrote to memory of 3404	2228	csrsll.exe	95
PID 2228 wrote to memory of 3404	2228	csrsll.exe	95
PID 2228 wrote to memory of 3404	2228	csrsll.exe	95
PID 2228 wrote to memory of 3404	2228	csrsll.exe	95
PID 2228 wrote to memory of 3404	2228	csrsll.exe	95
PID 2228 wrote to memory of 3404	2228	csrsll.exe	95
PID 2228 wrote to memory of 3404	2228	csrsll.exe	95
PID 2228 wrote to memory of 3404	2228	csrsll.exe	95
PID 2228 wrote to memory of 1268	2228	csrsll.exe	96
PID 2228 wrote to memory of 1268	2228	csrsll.exe	96
PID 2228 wrote to memory of 1268	2228	csrsll.exe	96
PID 2228 wrote to memory of 1268	2228	csrsll.exe	96
PID 2228 wrote to memory of 1268	2228	csrsll.exe	96
PID 2228 wrote to memory of 1268	2228	csrsll.exe	96
PID 2228 wrote to memory of 1268	2228	csrsll.exe	96
PID 2228 wrote to memory of 1268	2228	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe
"C:\Users\Admin\AppData\Local\Temp\2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4876
- C:\Users\Admin\AppData\Local\Temp\2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe
  "C:\Users\Admin\AppData\Local\Temp\2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3504
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BPXPD.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5032
  - - 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:4500
- - 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:2228
  - - 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:3404
  - - 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:1268

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\BPXPD.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
15720c39d06c0345457eb8c9eaa23018

SHA1
a65c183b76c520e5adb2aa95aad1811cd7d15e55

SHA256
1d9613398729faa4544a6ade41a2be04a94a1ce6682703f3cfea6b7d121a414b

SHA512
5d5fd096e2be33949cff061df89a79482bdf181c7faafa4236c10c70ba4fc3a24de4114053a80a5fa4b2ca37616d5e2ddf2b79881a3ecad2edfa3409e347859f

Download Submit
memory/1268-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1268-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1268-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1268-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1268-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1268-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2228-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2228-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2228-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3404-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3504-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3504-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3504-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3504-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3504-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4876-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4876-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4876-6-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/4876-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4876-7-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/4876-4-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/4876-3-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads