modiloader | b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aaf

Analysis

max time kernel
120s
max time network
118s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 07:59

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General

Target

b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe
Size

94KB
MD5

885fb7368b6e69b43606acb17abd5cc0
SHA1

4dbbbc8b9c4d3bead424617651844253fd5eb867
SHA256

b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aaf
SHA512

7250ef43084b94232b68deea99104f295b0c4eda359eea465898ea5c9b5ee128e42e7eeec8547121ede28bf8bc31bc35b3f84aaf856dc277ee12ca2405cca9eb
SSDEEP

1536:/pdyL9GjGiwA1z0PmVggNJKbFD2BBMx1RiwmPJr3raDk5BRf13KH9m2POE/:/pdyLALwACPmV3NYaYLiwIt3raA5BRfM

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/197360-147873-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
117496	csrsll.exe
197300	csrsll.exe
197360	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
117172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe
117172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe
117172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe
117172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe
117172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.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-1-5-21-3692679935-4019334568-335155002-1000\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 2172 set thread context of 117172	2172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	29
PID 117496 set thread context of 197300	117496	csrsll.exe	34
PID 117496 set thread context of 197360	117496	csrsll.exe	35

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2172-0-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/2172-54-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/2172-36493-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/2172-73922-0x0000000002740000-0x0000000002796000-memory.dmp	upx
behavioral1/memory/117172-73931-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/117172-73927-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/117172-73925-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/117172-73932-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/117172-73933-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2172-73934-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/files/0x0028000000016d69-73959.dat	upx
behavioral1/memory/117172-74179-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/117496-85578-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/197300-147847-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/197360-147858-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/117496-147866-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/117172-147869-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/197300-147870-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/197360-147873-0x0000000000400000-0x0000000000414000-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	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.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 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	197300	csrsll.exe
Token: SeDebugPrivilege	197300	csrsll.exe
Token: SeDebugPrivilege	197300	csrsll.exe
Token: SeDebugPrivilege	197300	csrsll.exe
Token: SeDebugPrivilege	197300	csrsll.exe
Token: SeDebugPrivilege	197300	csrsll.exe
Token: SeDebugPrivilege	197300	csrsll.exe
Token: SeDebugPrivilege	197300	csrsll.exe
Token: SeDebugPrivilege	197300	csrsll.exe
Token: SeDebugPrivilege	197300	csrsll.exe
Token: SeDebugPrivilege	197300	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe
117172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe
117496	csrsll.exe
197300	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 117172	2172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	29
PID 2172 wrote to memory of 117172	2172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	29
PID 2172 wrote to memory of 117172	2172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	29
PID 2172 wrote to memory of 117172	2172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	29
PID 2172 wrote to memory of 117172	2172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	29
PID 2172 wrote to memory of 117172	2172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	29
PID 2172 wrote to memory of 117172	2172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	29
PID 2172 wrote to memory of 117172	2172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	29
PID 117172 wrote to memory of 117368	117172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	30
PID 117172 wrote to memory of 117368	117172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	30
PID 117172 wrote to memory of 117368	117172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	30
PID 117172 wrote to memory of 117368	117172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	30
PID 117368 wrote to memory of 117464	117368	cmd.exe	32
PID 117368 wrote to memory of 117464	117368	cmd.exe	32
PID 117368 wrote to memory of 117464	117368	cmd.exe	32
PID 117368 wrote to memory of 117464	117368	cmd.exe	32
PID 117172 wrote to memory of 117496	117172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	33
PID 117172 wrote to memory of 117496	117172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	33
PID 117172 wrote to memory of 117496	117172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	33
PID 117172 wrote to memory of 117496	117172	b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe	33
PID 117496 wrote to memory of 197300	117496	csrsll.exe	34
PID 117496 wrote to memory of 197300	117496	csrsll.exe	34
PID 117496 wrote to memory of 197300	117496	csrsll.exe	34
PID 117496 wrote to memory of 197300	117496	csrsll.exe	34
PID 117496 wrote to memory of 197300	117496	csrsll.exe	34
PID 117496 wrote to memory of 197300	117496	csrsll.exe	34
PID 117496 wrote to memory of 197300	117496	csrsll.exe	34
PID 117496 wrote to memory of 197300	117496	csrsll.exe	34
PID 117496 wrote to memory of 197360	117496	csrsll.exe	35
PID 117496 wrote to memory of 197360	117496	csrsll.exe	35
PID 117496 wrote to memory of 197360	117496	csrsll.exe	35
PID 117496 wrote to memory of 197360	117496	csrsll.exe	35
PID 117496 wrote to memory of 197360	117496	csrsll.exe	35
PID 117496 wrote to memory of 197360	117496	csrsll.exe	35
PID 117496 wrote to memory of 197360	117496	csrsll.exe	35
PID 117496 wrote to memory of 197360	117496	csrsll.exe	35

C:\Users\Admin\AppData\Local\Temp\b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe
"C:\Users\Admin\AppData\Local\Temp\b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Users\Admin\AppData\Local\Temp\b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe
  "C:\Users\Admin\AppData\Local\Temp\b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aafN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:117172
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\SPOSF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:117368
  - - 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:117464
- - 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:117496
  - - 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:197300
  - - 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:197360

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\SPOSF.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
94KB

MD5
885fb7368b6e69b43606acb17abd5cc0

SHA1
4dbbbc8b9c4d3bead424617651844253fd5eb867

SHA256
b37820e45ab833c1be1fe92a0cef99bc797514153569654b45fe43b896da0aaf

SHA512
7250ef43084b94232b68deea99104f295b0c4eda359eea465898ea5c9b5ee128e42e7eeec8547121ede28bf8bc31bc35b3f84aaf856dc277ee12ca2405cca9eb

Download Submit
memory/2172-73934-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2172-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2172-13-0x0000000000405000-0x0000000000406000-memory.dmp

Filesize
4KB

Download
memory/2172-54-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2172-42940-0x0000000000405000-0x0000000000406000-memory.dmp

Filesize
4KB

Download
memory/2172-36493-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2172-73922-0x0000000002740000-0x0000000002796000-memory.dmp

Filesize
344KB

Download
memory/2172-0-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/117172-73923-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/117172-74179-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/117172-73932-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/117172-73933-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/117172-73927-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/117172-73929-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/117172-73931-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/117172-73974-0x0000000002C30000-0x0000000002C86000-memory.dmp

Filesize
344KB

Download
memory/117172-73973-0x0000000002C30000-0x0000000002C86000-memory.dmp

Filesize
344KB

Download
memory/117172-73925-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/117172-81609-0x0000000002C30000-0x0000000002C86000-memory.dmp

Filesize
344KB

Download
memory/117172-82803-0x0000000002C30000-0x0000000002C86000-memory.dmp

Filesize
344KB

Download
memory/117172-147869-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/117496-147866-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/117496-85578-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/197300-147847-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/197300-147870-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/197360-147858-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/197360-147873-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads