modiloader | e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2024 11:59

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General

Target

e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe
Size

90KB
MD5

ba972816b94dd45608567529adf6e0d0
SHA1

e2fc275948eeb70fd606538ff3b77b8fda4cdda3
SHA256

e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25
SHA512

48b52ea4b28eb92abb865c90131b8efb308f22371201958fcf7e806e1b738e9e77c6d2f1b6139f3032a9a669f491277cbfef5f36c9461da7f6eb9d47a24c4688
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3c

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/516-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/516-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/516-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/516-63-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe

Executes dropped EXE 3 IoCs

pid	Process
4712	csrsll.exe
4456	csrsll.exe
516	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-1-5-21-2437139445-1151884604-3026847218-1000\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 4660 set thread context of 4172	4660	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	83
PID 4712 set thread context of 4456	4712	csrsll.exe	100
PID 4712 set thread context of 516	4712	csrsll.exe	101

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4660-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4660-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4172-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4172-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4172-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4660-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cc1-29.dat	upx
behavioral2/memory/4712-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4172-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4712-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4712-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/516-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/516-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/516-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4712-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/516-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/516-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4172-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4456-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/516-63-0x0000000000400000-0x0000000000414000-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	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe
Token: SeDebugPrivilege	4456	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4660	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe
4172	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe
4712	csrsll.exe
4456	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4660 wrote to memory of 4172	4660	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	83
PID 4660 wrote to memory of 4172	4660	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	83
PID 4660 wrote to memory of 4172	4660	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	83
PID 4660 wrote to memory of 4172	4660	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	83
PID 4660 wrote to memory of 4172	4660	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	83
PID 4660 wrote to memory of 4172	4660	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	83
PID 4660 wrote to memory of 4172	4660	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	83
PID 4660 wrote to memory of 4172	4660	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	83
PID 4172 wrote to memory of 1060	4172	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	86
PID 4172 wrote to memory of 1060	4172	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	86
PID 4172 wrote to memory of 1060	4172	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	86
PID 1060 wrote to memory of 1944	1060	cmd.exe	90
PID 1060 wrote to memory of 1944	1060	cmd.exe	90
PID 1060 wrote to memory of 1944	1060	cmd.exe	90
PID 4172 wrote to memory of 4712	4172	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	91
PID 4172 wrote to memory of 4712	4172	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	91
PID 4172 wrote to memory of 4712	4172	e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe	91
PID 4712 wrote to memory of 4456	4712	csrsll.exe	100
PID 4712 wrote to memory of 4456	4712	csrsll.exe	100
PID 4712 wrote to memory of 4456	4712	csrsll.exe	100
PID 4712 wrote to memory of 4456	4712	csrsll.exe	100
PID 4712 wrote to memory of 4456	4712	csrsll.exe	100
PID 4712 wrote to memory of 4456	4712	csrsll.exe	100
PID 4712 wrote to memory of 4456	4712	csrsll.exe	100
PID 4712 wrote to memory of 4456	4712	csrsll.exe	100
PID 4712 wrote to memory of 516	4712	csrsll.exe	101
PID 4712 wrote to memory of 516	4712	csrsll.exe	101
PID 4712 wrote to memory of 516	4712	csrsll.exe	101
PID 4712 wrote to memory of 516	4712	csrsll.exe	101
PID 4712 wrote to memory of 516	4712	csrsll.exe	101
PID 4712 wrote to memory of 516	4712	csrsll.exe	101
PID 4712 wrote to memory of 516	4712	csrsll.exe	101
PID 4712 wrote to memory of 516	4712	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe
"C:\Users\Admin\AppData\Local\Temp\e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4660
- C:\Users\Admin\AppData\Local\Temp\e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe
  "C:\Users\Admin\AppData\Local\Temp\e8526471ec744071f8f7b60cca4be93f5d991e207077099539626cba3b564c25N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4172
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OKJXE.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1060
  - - 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:1944
- - 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:4712
  - - 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:4456
  - - 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:516

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\OKJXE.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
795f867f3ce8f5119c6171bf176c255f

SHA1
47a767b9874638eeaa1d134255b87fea99ac04e1

SHA256
a0c95f667091ba3a5c499756ac9da27085ccece7cd65e2f91dfbd4207146e289

SHA512
634a85da23a42c8a902157658f7741607f19a201b888deef6c26de22cc7b2cedd85bbed79cf97ba5585ab566b42e0b13cb16694e7386e2f8755f8021b55e2ea9

Download Submit
memory/516-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/516-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/516-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/516-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/516-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/516-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4172-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4172-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4172-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4172-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4172-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4456-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4660-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4660-5-0x00000000022E0000-0x00000000022E2000-memory.dmp

Filesize
8KB

Download
memory/4660-6-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/4660-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4660-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4660-3-0x00000000022C0000-0x00000000022C2000-memory.dmp

Filesize
8KB

Download
memory/4712-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4712-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4712-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4712-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads