modiloader | 913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc

Analysis

max time kernel
149s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 01:11

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General

Target

913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe
Size

90KB
MD5

9f1af8dc9d61b142ecadbc514c01a0a9
SHA1

04a7684f4e6319fcf340a0354330098fd41c8c76
SHA256

913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc
SHA512

fc13105c30628c24c56530931031fd49f18f326d7b2e50b813fd4772096a2a83ca19c8388ae5ecfe73fce376bd29ac40d19431509a3da92bba128d321f8bcdc3
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDp:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3T

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 1 IoCs

resource	yara_rule
behavioral1/memory/568-264-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
800	csrsll.exe
1376	csrsll.exe
568	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2636	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe
2636	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe
2636	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe
2636	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe
2636	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.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-1-5-21-3290804112-2823094203-3137964600-1000\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 2640 set thread context of 2636	2640	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	30
PID 800 set thread context of 1376	800	csrsll.exe	35
PID 800 set thread context of 568	800	csrsll.exe	36

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2640-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2640-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2640-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2636-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2640-101-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2636-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2636-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2636-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2636-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2636-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0008000000012117-149.dat	upx
behavioral1/memory/2636-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/800-213-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/568-253-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/800-257-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/800-252-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1376-243-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2636-260-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1376-261-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/568-264-0x0000000000400000-0x0000000000414000-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	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.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	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe
Token: SeDebugPrivilege	1376	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2640	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe
2636	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe
800	csrsll.exe
1376	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2640 wrote to memory of 2636	2640	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	30
PID 2640 wrote to memory of 2636	2640	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	30
PID 2640 wrote to memory of 2636	2640	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	30
PID 2640 wrote to memory of 2636	2640	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	30
PID 2640 wrote to memory of 2636	2640	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	30
PID 2640 wrote to memory of 2636	2640	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	30
PID 2640 wrote to memory of 2636	2640	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	30
PID 2640 wrote to memory of 2636	2640	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	30
PID 2636 wrote to memory of 652	2636	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	31
PID 2636 wrote to memory of 652	2636	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	31
PID 2636 wrote to memory of 652	2636	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	31
PID 2636 wrote to memory of 652	2636	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	31
PID 652 wrote to memory of 968	652	cmd.exe	33
PID 652 wrote to memory of 968	652	cmd.exe	33
PID 652 wrote to memory of 968	652	cmd.exe	33
PID 652 wrote to memory of 968	652	cmd.exe	33
PID 2636 wrote to memory of 800	2636	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	34
PID 2636 wrote to memory of 800	2636	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	34
PID 2636 wrote to memory of 800	2636	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	34
PID 2636 wrote to memory of 800	2636	913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe	34
PID 800 wrote to memory of 1376	800	csrsll.exe	35
PID 800 wrote to memory of 1376	800	csrsll.exe	35
PID 800 wrote to memory of 1376	800	csrsll.exe	35
PID 800 wrote to memory of 1376	800	csrsll.exe	35
PID 800 wrote to memory of 1376	800	csrsll.exe	35
PID 800 wrote to memory of 1376	800	csrsll.exe	35
PID 800 wrote to memory of 1376	800	csrsll.exe	35
PID 800 wrote to memory of 1376	800	csrsll.exe	35
PID 800 wrote to memory of 568	800	csrsll.exe	36
PID 800 wrote to memory of 568	800	csrsll.exe	36
PID 800 wrote to memory of 568	800	csrsll.exe	36
PID 800 wrote to memory of 568	800	csrsll.exe	36
PID 800 wrote to memory of 568	800	csrsll.exe	36
PID 800 wrote to memory of 568	800	csrsll.exe	36
PID 800 wrote to memory of 568	800	csrsll.exe	36
PID 800 wrote to memory of 568	800	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe
"C:\Users\Admin\AppData\Local\Temp\913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2640
- C:\Users\Admin\AppData\Local\Temp\913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe
  "C:\Users\Admin\AppData\Local\Temp\913af6bdece5a778ad98949380e7ecad77b2043b2e6354d61e230b58804b12bc.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\CQPBJ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:652
  - - 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:968
- - 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:800
  - - 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:1376
  - - 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:568

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

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\CQPBJ.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
88715a7b8624cb0697ea44725835cf07

SHA1
32dc42bf96b4e81f55f8d2421a62d58a67b298c5

SHA256
123bd89edc377105857d31c9f93e370b7a70cf0e571106891a4da23d32f659ec

SHA512
562cfda07fff0f0707ec4670c3ab1495301d36a4fa6f77dd9d919e1284986936a5ec1bad6497dcb21ab5b669ec8c6f8266ff17d890f56affa9e36c3f06fb8678

Download Submit
memory/568-264-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/568-253-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/800-252-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/800-257-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/800-178-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/800-213-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/800-166-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/800-156-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1376-261-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1376-243-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-212-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/2636-145-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/2636-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2636-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-260-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-242-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/2636-148-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/2636-147-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/2636-146-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/2636-169-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/2636-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-153-0x00000000034C0000-0x0000000003513000-memory.dmp

Filesize
332KB

Download
memory/2640-96-0x0000000002530000-0x0000000002583000-memory.dmp

Filesize
332KB

Download
memory/2640-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2640-41-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2640-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2640-61-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/2640-101-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2640-29-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/2640-71-0x0000000000510000-0x0000000000511000-memory.dmp

Filesize
4KB

Download
memory/2640-16-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2640-15-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2640-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2640-79-0x0000000000530000-0x0000000000532000-memory.dmp

Filesize
8KB

Download
memory/2640-3-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2640-5-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads