modiloader | f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7

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
26-12-2024 09:36

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General

Target

f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe
Size

90KB
MD5

89b8aa643fc3e0d800e0fa861a90969a
SHA1

73388893cd68e0e0ce35cbe47e75a9f1429b9c81
SHA256

f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7
SHA512

7df6b17c93f456619cd581387e8ec22808ba09911268fd4aa7997a5d6771ec9d04bbdc8ed5f103f68aa108ff1c15af05848ff63c57654674b99bf8586c765ada
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDM:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3e

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/4304-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4304-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4304-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4304-61-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe

Executes dropped EXE 3 IoCs

pid	Process
3920	csrsll.exe
3548	csrsll.exe
4304	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-1-5-21-1045960512-3948844814-3059691613-1000\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 3184 set thread context of 4720	3184	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	83
PID 3920 set thread context of 3548	3920	csrsll.exe	97
PID 3920 set thread context of 4304	3920	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3184-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3184-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4720-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4720-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3184-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4720-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000c000000023b6e-29.dat	upx
behavioral2/memory/4720-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3920-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3920-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4304-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4304-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4304-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3920-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4304-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4304-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4720-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3548-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4304-61-0x0000000000400000-0x0000000000414000-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	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe
Token: SeDebugPrivilege	3548	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3184	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe
4720	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe
3920	csrsll.exe
3548	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3184 wrote to memory of 4720	3184	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	83
PID 3184 wrote to memory of 4720	3184	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	83
PID 3184 wrote to memory of 4720	3184	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	83
PID 3184 wrote to memory of 4720	3184	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	83
PID 3184 wrote to memory of 4720	3184	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	83
PID 3184 wrote to memory of 4720	3184	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	83
PID 3184 wrote to memory of 4720	3184	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	83
PID 3184 wrote to memory of 4720	3184	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	83
PID 4720 wrote to memory of 3100	4720	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	84
PID 4720 wrote to memory of 3100	4720	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	84
PID 4720 wrote to memory of 3100	4720	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	84
PID 3100 wrote to memory of 4740	3100	cmd.exe	88
PID 3100 wrote to memory of 4740	3100	cmd.exe	88
PID 3100 wrote to memory of 4740	3100	cmd.exe	88
PID 4720 wrote to memory of 3920	4720	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	89
PID 4720 wrote to memory of 3920	4720	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	89
PID 4720 wrote to memory of 3920	4720	f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe	89
PID 3920 wrote to memory of 3548	3920	csrsll.exe	97
PID 3920 wrote to memory of 3548	3920	csrsll.exe	97
PID 3920 wrote to memory of 3548	3920	csrsll.exe	97
PID 3920 wrote to memory of 3548	3920	csrsll.exe	97
PID 3920 wrote to memory of 3548	3920	csrsll.exe	97
PID 3920 wrote to memory of 3548	3920	csrsll.exe	97
PID 3920 wrote to memory of 3548	3920	csrsll.exe	97
PID 3920 wrote to memory of 3548	3920	csrsll.exe	97
PID 3920 wrote to memory of 4304	3920	csrsll.exe	98
PID 3920 wrote to memory of 4304	3920	csrsll.exe	98
PID 3920 wrote to memory of 4304	3920	csrsll.exe	98
PID 3920 wrote to memory of 4304	3920	csrsll.exe	98
PID 3920 wrote to memory of 4304	3920	csrsll.exe	98
PID 3920 wrote to memory of 4304	3920	csrsll.exe	98
PID 3920 wrote to memory of 4304	3920	csrsll.exe	98
PID 3920 wrote to memory of 4304	3920	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe
"C:\Users\Admin\AppData\Local\Temp\f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3184
- C:\Users\Admin\AppData\Local\Temp\f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe
  "C:\Users\Admin\AppData\Local\Temp\f54abe9fb883b0d5aed19d3ba238e93099d07114ff367434f304372d1122d0a7.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4720
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\UCQPB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3100
  - - 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:4740
- - 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:3920
  - - 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:3548
  - - 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:4304

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\UCQPB.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
9309a3a192ddda7d800b25a48fee0406

SHA1
b16d8072781546087d22645a699650c1781337a4

SHA256
84e13d9fbe0bb6fef845a8d52582b8b12993abf78bf77fec2747d8950ac93dbb

SHA512
686cea37f02ef133dba79a33a48316b00b30410667e3220e469769721017117ad2165861bd248e7c57c856d6006a75989bc3e9e7a40311dd34cd772d05b5abe7

Download Submit
memory/3184-3-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/3184-6-0x0000000002200000-0x0000000002202000-memory.dmp

Filesize
8KB

Download
memory/3184-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3184-5-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/3184-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3184-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3548-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3920-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3920-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3920-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4304-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4304-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4304-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4304-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4304-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4304-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4720-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4720-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4720-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4720-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4720-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads