modiloader | c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 13:51

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General

Target

c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
Size

90KB
MD5

24868172cb52466812b093aff60c19c0
SHA1

6472a5dd85f7f3813db2c2d770d31ca4c88ca672
SHA256

c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506
SHA512

529b23facc007d509cb220a0ea8b132385f43dd81077819691bd7cbf1f34c5bf1496abd5c8039585126d5e411848feb165da25a978874f1eea5a5255d35a53f5
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDz:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3J

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/1704-262-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1740	csrsll.exe
2072	csrsll.exe
1704	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1808	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
1808	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
1808	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
1808	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
1808	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.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-1-5-21-1846800975-3917212583-2893086201-1000\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 2652 set thread context of 1808	2652	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	30
PID 1740 set thread context of 2072	1740	csrsll.exe	35
PID 1740 set thread context of 1704	1740	csrsll.exe	36

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2652-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2652-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1808-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1808-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1808-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1808-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2652-100-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2652-99-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1808-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1808-91-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000800000001211a-131.dat	upx
behavioral1/memory/1808-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2072-246-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1740-245-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1704-250-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1740-252-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1808-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2072-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1704-262-0x0000000000400000-0x0000000000414000-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	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	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2652	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
1808	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
1740	csrsll.exe
2072	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 1808	2652	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	30
PID 2652 wrote to memory of 1808	2652	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	30
PID 2652 wrote to memory of 1808	2652	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	30
PID 2652 wrote to memory of 1808	2652	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	30
PID 2652 wrote to memory of 1808	2652	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	30
PID 2652 wrote to memory of 1808	2652	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	30
PID 2652 wrote to memory of 1808	2652	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	30
PID 2652 wrote to memory of 1808	2652	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	30
PID 1808 wrote to memory of 852	1808	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	31
PID 1808 wrote to memory of 852	1808	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	31
PID 1808 wrote to memory of 852	1808	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	31
PID 1808 wrote to memory of 852	1808	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	31
PID 852 wrote to memory of 1284	852	cmd.exe	33
PID 852 wrote to memory of 1284	852	cmd.exe	33
PID 852 wrote to memory of 1284	852	cmd.exe	33
PID 852 wrote to memory of 1284	852	cmd.exe	33
PID 1808 wrote to memory of 1740	1808	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	34
PID 1808 wrote to memory of 1740	1808	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	34
PID 1808 wrote to memory of 1740	1808	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	34
PID 1808 wrote to memory of 1740	1808	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	34
PID 1740 wrote to memory of 2072	1740	csrsll.exe	35
PID 1740 wrote to memory of 2072	1740	csrsll.exe	35
PID 1740 wrote to memory of 2072	1740	csrsll.exe	35
PID 1740 wrote to memory of 2072	1740	csrsll.exe	35
PID 1740 wrote to memory of 2072	1740	csrsll.exe	35
PID 1740 wrote to memory of 2072	1740	csrsll.exe	35
PID 1740 wrote to memory of 2072	1740	csrsll.exe	35
PID 1740 wrote to memory of 2072	1740	csrsll.exe	35
PID 1740 wrote to memory of 1704	1740	csrsll.exe	36
PID 1740 wrote to memory of 1704	1740	csrsll.exe	36
PID 1740 wrote to memory of 1704	1740	csrsll.exe	36
PID 1740 wrote to memory of 1704	1740	csrsll.exe	36
PID 1740 wrote to memory of 1704	1740	csrsll.exe	36
PID 1740 wrote to memory of 1704	1740	csrsll.exe	36
PID 1740 wrote to memory of 1704	1740	csrsll.exe	36
PID 1740 wrote to memory of 1704	1740	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
"C:\Users\Admin\AppData\Local\Temp\c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Users\Admin\AppData\Local\Temp\c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
  "C:\Users\Admin\AppData\Local\Temp\c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1808
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BXWAN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:852
  - - 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:1284
- - 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:1740
  - - 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:2072
  - - 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:1704

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\BXWAN.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
7e8a40f2f4958366a030526541828b8a

SHA1
44ad682c06f665ae6e3f1f9998829e5e191ea506

SHA256
ed3cba5cb5d2a5f610763e0dc3f53bb795444c523e9ae8553ce57f5ab890db9c

SHA512
d55056ceab1aa75335841e256e360cb12530562d2346540b57de0116b17931641370ecb11d8e5d9eac11a6d8c57b825bf35b6afeb9f7b53fdbd146f24d53dfce

Download Submit
memory/1704-262-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1704-250-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1740-252-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1740-164-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1740-175-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1740-245-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1740-154-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1808-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1808-145-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/1808-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1808-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1808-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1808-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1808-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1808-211-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/1808-214-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/1808-95-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1808-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1808-220-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/1808-89-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1808-240-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/1808-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1808-147-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/1808-146-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/2072-246-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2072-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2652-100-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2652-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2652-71-0x0000000000520000-0x0000000000521000-memory.dmp

Filesize
4KB

Download
memory/2652-41-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2652-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2652-99-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2652-29-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2652-79-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/2652-15-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/2652-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2652-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2652-104-0x0000000002750000-0x00000000027A3000-memory.dmp

Filesize
332KB

Download
memory/2652-61-0x0000000000500000-0x0000000000501000-memory.dmp

Filesize
4KB

Download
memory/2652-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads