modiloader | 35310cefbb1c15e66a69a05a5377de434a960150db38aac7b38f63b1fc75f9cf

Analysis

max time kernel
119s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08/09/2024, 07:35

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General

Target

e22a8a2029c9ab86f313d80ea81d6f80N.exe
Size

308KB
MD5

e22a8a2029c9ab86f313d80ea81d6f80
SHA1

2e19e9616a5a9b7982c92b1a29e3dd725b1b22eb
SHA256

35310cefbb1c15e66a69a05a5377de434a960150db38aac7b38f63b1fc75f9cf
SHA512

177f2503b77d4c72d5c2c7f04dde7f5f64174e8ccd3971a97b0c2e3271cca60afb71eb1522dc7107fba147af492a98fa3ca78400a1774372f1880cfd90089282
SSDEEP

3072:/c3sBG7mXh7m/zZM3jAbNOM6CNtDCZFL:E3sBz0Z4Mj72F

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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/4372-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4372-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4372-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4372-61-0x0000000000400000-0x0000000000414000-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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	e22a8a2029c9ab86f313d80ea81d6f80N.exe

Executes dropped EXE 3 IoCs

pid	Process
4664	csrsll.exe
3320	csrsll.exe
4372	csrsll.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/824-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/824-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/824-6-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4372-43-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/824-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4372-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/824-53-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4372-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3320-51-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4372-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4372-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3320-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4372-61-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-656926755-4116854191-210765258-1000\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 4864 set thread context of 824	4864	e22a8a2029c9ab86f313d80ea81d6f80N.exe	86
PID 4664 set thread context of 3320	4664	csrsll.exe	92
PID 4664 set thread context of 4372	4664	csrsll.exe	93

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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e22a8a2029c9ab86f313d80ea81d6f80N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e22a8a2029c9ab86f313d80ea81d6f80N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe
Token: SeDebugPrivilege	3320	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4864	e22a8a2029c9ab86f313d80ea81d6f80N.exe
824	e22a8a2029c9ab86f313d80ea81d6f80N.exe
4664	csrsll.exe
3320	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4864 wrote to memory of 824	4864	e22a8a2029c9ab86f313d80ea81d6f80N.exe	86
PID 4864 wrote to memory of 824	4864	e22a8a2029c9ab86f313d80ea81d6f80N.exe	86
PID 4864 wrote to memory of 824	4864	e22a8a2029c9ab86f313d80ea81d6f80N.exe	86
PID 4864 wrote to memory of 824	4864	e22a8a2029c9ab86f313d80ea81d6f80N.exe	86
PID 4864 wrote to memory of 824	4864	e22a8a2029c9ab86f313d80ea81d6f80N.exe	86
PID 4864 wrote to memory of 824	4864	e22a8a2029c9ab86f313d80ea81d6f80N.exe	86
PID 4864 wrote to memory of 824	4864	e22a8a2029c9ab86f313d80ea81d6f80N.exe	86
PID 4864 wrote to memory of 824	4864	e22a8a2029c9ab86f313d80ea81d6f80N.exe	86
PID 824 wrote to memory of 2784	824	e22a8a2029c9ab86f313d80ea81d6f80N.exe	87
PID 824 wrote to memory of 2784	824	e22a8a2029c9ab86f313d80ea81d6f80N.exe	87
PID 824 wrote to memory of 2784	824	e22a8a2029c9ab86f313d80ea81d6f80N.exe	87
PID 2784 wrote to memory of 1572	2784	cmd.exe	90
PID 2784 wrote to memory of 1572	2784	cmd.exe	90
PID 2784 wrote to memory of 1572	2784	cmd.exe	90
PID 824 wrote to memory of 4664	824	e22a8a2029c9ab86f313d80ea81d6f80N.exe	91
PID 824 wrote to memory of 4664	824	e22a8a2029c9ab86f313d80ea81d6f80N.exe	91
PID 824 wrote to memory of 4664	824	e22a8a2029c9ab86f313d80ea81d6f80N.exe	91
PID 4664 wrote to memory of 3320	4664	csrsll.exe	92
PID 4664 wrote to memory of 3320	4664	csrsll.exe	92
PID 4664 wrote to memory of 3320	4664	csrsll.exe	92
PID 4664 wrote to memory of 3320	4664	csrsll.exe	92
PID 4664 wrote to memory of 3320	4664	csrsll.exe	92
PID 4664 wrote to memory of 3320	4664	csrsll.exe	92
PID 4664 wrote to memory of 3320	4664	csrsll.exe	92
PID 4664 wrote to memory of 3320	4664	csrsll.exe	92
PID 4664 wrote to memory of 4372	4664	csrsll.exe	93
PID 4664 wrote to memory of 4372	4664	csrsll.exe	93
PID 4664 wrote to memory of 4372	4664	csrsll.exe	93
PID 4664 wrote to memory of 4372	4664	csrsll.exe	93
PID 4664 wrote to memory of 4372	4664	csrsll.exe	93
PID 4664 wrote to memory of 4372	4664	csrsll.exe	93
PID 4664 wrote to memory of 4372	4664	csrsll.exe	93
PID 4664 wrote to memory of 4372	4664	csrsll.exe	93

C:\Users\Admin\AppData\Local\Temp\e22a8a2029c9ab86f313d80ea81d6f80N.exe
"C:\Users\Admin\AppData\Local\Temp\e22a8a2029c9ab86f313d80ea81d6f80N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4864
- C:\Users\Admin\AppData\Local\Temp\e22a8a2029c9ab86f313d80ea81d6f80N.exe
  "C:\Users\Admin\AppData\Local\Temp\e22a8a2029c9ab86f313d80ea81d6f80N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:824
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ACSPP.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2784
  - - 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:1572
- - 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:4664
  - - 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:3320
  - - 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:4372

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\ACSPP.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
308KB

MD5
9c66e0ac31e3f1f3f61d17d118dd93af

SHA1
ef1c2757b3be2562a2852168a82d9263630cf376

SHA256
4ade8e4795df0749a48d293aeb3f6d650e5ad33f143890b32845202651c3ec52

SHA512
adea514355761f9167c5417f37404cca5842f27e211875bab588e90ffdbd3590d2d379ec3dbe0af5bde05e9169310bba0d70a8113007188ce0f9bd74bdbdea38

Download Submit
memory/824-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/824-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/824-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/824-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/824-53-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3320-51-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3320-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4372-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4372-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4372-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4372-43-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4372-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4372-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4664-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4664-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4664-38-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4664-34-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4864-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4864-4-0x0000000002320000-0x0000000002321000-memory.dmp

Filesize
4KB

Download
memory/4864-5-0x0000000002330000-0x0000000002331000-memory.dmp

Filesize
4KB

Download
memory/4864-3-0x0000000002300000-0x0000000002301000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads