modiloader | 036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11/12/2024, 08:22

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General

Target

036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe
Size

90KB
MD5

bfbcaab4238a6f8e7ea9eb684c848b46
SHA1

ff2bdbfd258147b31a24a2fb4d2cc3d15766c6df
SHA256

036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3
SHA512

1c5c9cf8ec3f22527eb361f8808465be3bc69e9465b2b3c81b1e25160aabf589b99f18da89aab03cc6af8728d21f253015a2a59bd02176cce1cd8f876f1ffe77
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDS:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3M

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/4528-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4528-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4528-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4528-62-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe

Executes dropped EXE 3 IoCs

pid	Process
1784	csrsll.exe
1608	csrsll.exe
4528	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-1-5-21-940901362-3608833189-1915618603-1000\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 4008 set thread context of 4724	4008	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	89
PID 1784 set thread context of 1608	1784	csrsll.exe	101
PID 1784 set thread context of 4528	1784	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4008-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4008-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4724-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4724-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4724-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4008-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b9c-29.dat	upx
behavioral2/memory/4724-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1784-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1784-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4528-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4528-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4528-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4528-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4528-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1784-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4724-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1608-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4528-62-0x0000000000400000-0x0000000000414000-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	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.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	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe
Token: SeDebugPrivilege	1608	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4008	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe
4724	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe
1784	csrsll.exe
1608	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4008 wrote to memory of 4724	4008	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	89
PID 4008 wrote to memory of 4724	4008	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	89
PID 4008 wrote to memory of 4724	4008	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	89
PID 4008 wrote to memory of 4724	4008	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	89
PID 4008 wrote to memory of 4724	4008	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	89
PID 4008 wrote to memory of 4724	4008	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	89
PID 4008 wrote to memory of 4724	4008	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	89
PID 4008 wrote to memory of 4724	4008	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	89
PID 4724 wrote to memory of 1476	4724	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	90
PID 4724 wrote to memory of 1476	4724	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	90
PID 4724 wrote to memory of 1476	4724	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	90
PID 1476 wrote to memory of 2696	1476	cmd.exe	95
PID 1476 wrote to memory of 2696	1476	cmd.exe	95
PID 1476 wrote to memory of 2696	1476	cmd.exe	95
PID 4724 wrote to memory of 1784	4724	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	96
PID 4724 wrote to memory of 1784	4724	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	96
PID 4724 wrote to memory of 1784	4724	036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe	96
PID 1784 wrote to memory of 1608	1784	csrsll.exe	101
PID 1784 wrote to memory of 1608	1784	csrsll.exe	101
PID 1784 wrote to memory of 1608	1784	csrsll.exe	101
PID 1784 wrote to memory of 1608	1784	csrsll.exe	101
PID 1784 wrote to memory of 1608	1784	csrsll.exe	101
PID 1784 wrote to memory of 1608	1784	csrsll.exe	101
PID 1784 wrote to memory of 1608	1784	csrsll.exe	101
PID 1784 wrote to memory of 1608	1784	csrsll.exe	101
PID 1784 wrote to memory of 4528	1784	csrsll.exe	102
PID 1784 wrote to memory of 4528	1784	csrsll.exe	102
PID 1784 wrote to memory of 4528	1784	csrsll.exe	102
PID 1784 wrote to memory of 4528	1784	csrsll.exe	102
PID 1784 wrote to memory of 4528	1784	csrsll.exe	102
PID 1784 wrote to memory of 4528	1784	csrsll.exe	102
PID 1784 wrote to memory of 4528	1784	csrsll.exe	102
PID 1784 wrote to memory of 4528	1784	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe
"C:\Users\Admin\AppData\Local\Temp\036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4008
- C:\Users\Admin\AppData\Local\Temp\036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe
  "C:\Users\Admin\AppData\Local\Temp\036e7801d2e6ed61d991d97a24ebe0f9cba89ef8b1c55d9aaf2d61eb9deec7f3.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4724
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XTHUF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1476
  - - 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:2696
- - 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:1784
  - - 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:1608
  - - 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:4528

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\XTHUF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
3c40ad47e9152f828dd6ec47c4ad5df8

SHA1
f148445b420b05f2afb219366c656a4eb8dc8056

SHA256
4f22628c6ca816d0141e4ea5411150ca54605eb818856132ab57477f81b3b15e

SHA512
663389763f9081b4f758a9681cec9ebc026435fe96c825b84ef77acc730ffa12fc0831dac8f4f0d6cdb112b9516140a3c061ea7a5e65cf7aa171b2ebb84655a5

Download Submit
memory/1608-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1784-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1784-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1784-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4008-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/4008-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4008-5-0x0000000002C70000-0x0000000002C72000-memory.dmp

Filesize
8KB

Download
memory/4008-6-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/4008-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4008-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4528-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4528-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4528-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4528-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4528-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4528-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4724-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4724-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4724-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4724-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4724-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4724-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads