modiloader | 4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7be

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28/11/2024, 06:42

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General

Target

4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe
Size

90KB
MD5

f0fe45f883c781a0e6241076388eae70
SHA1

3cd9bd725096f2ad623eacd3a69305e886c6c5fc
SHA256

4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7be
SHA512

33287f6e1a953280c8435a5a053a23d5c6f898539d83a20304c828fe2cf9400a96eb390ee7db1f0ccba05fc860af92f3913eaf5f2b3cdd4f86d69837e60a92ae
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD7:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3p

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/1640-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1968	csrsll.exe
900	csrsll.exe
1640	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2596	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe
2596	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe
2596	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe
2596	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe
2596	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.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-1-5-21-312935884-697965778-3955649944-1000\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 2504 set thread context of 2596	2504	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	30
PID 1968 set thread context of 900	1968	csrsll.exe	36
PID 1968 set thread context of 1640	1968	csrsll.exe	37

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2504-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2504-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2504-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2504-96-0x0000000002000000-0x0000000002053000-memory.dmp	upx
behavioral1/memory/2596-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2504-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2596-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0009000000012102-149.dat	upx
behavioral1/memory/2596-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1968-213-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1968-253-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1640-247-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2596-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/900-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1640-260-0x0000000000400000-0x0000000000414000-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	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe
Token: SeDebugPrivilege	900	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2504	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe
2596	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe
1968	csrsll.exe
900	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 2596	2504	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	30
PID 2504 wrote to memory of 2596	2504	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	30
PID 2504 wrote to memory of 2596	2504	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	30
PID 2504 wrote to memory of 2596	2504	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	30
PID 2504 wrote to memory of 2596	2504	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	30
PID 2504 wrote to memory of 2596	2504	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	30
PID 2504 wrote to memory of 2596	2504	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	30
PID 2504 wrote to memory of 2596	2504	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	30
PID 2596 wrote to memory of 2044	2596	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	31
PID 2596 wrote to memory of 2044	2596	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	31
PID 2596 wrote to memory of 2044	2596	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	31
PID 2596 wrote to memory of 2044	2596	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	31
PID 2044 wrote to memory of 484	2044	cmd.exe	33
PID 2044 wrote to memory of 484	2044	cmd.exe	33
PID 2044 wrote to memory of 484	2044	cmd.exe	33
PID 2044 wrote to memory of 484	2044	cmd.exe	33
PID 2596 wrote to memory of 1968	2596	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	34
PID 2596 wrote to memory of 1968	2596	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	34
PID 2596 wrote to memory of 1968	2596	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	34
PID 2596 wrote to memory of 1968	2596	4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe	34
PID 1968 wrote to memory of 900	1968	csrsll.exe	36
PID 1968 wrote to memory of 900	1968	csrsll.exe	36
PID 1968 wrote to memory of 900	1968	csrsll.exe	36
PID 1968 wrote to memory of 900	1968	csrsll.exe	36
PID 1968 wrote to memory of 900	1968	csrsll.exe	36
PID 1968 wrote to memory of 900	1968	csrsll.exe	36
PID 1968 wrote to memory of 900	1968	csrsll.exe	36
PID 1968 wrote to memory of 900	1968	csrsll.exe	36
PID 1968 wrote to memory of 1640	1968	csrsll.exe	37
PID 1968 wrote to memory of 1640	1968	csrsll.exe	37
PID 1968 wrote to memory of 1640	1968	csrsll.exe	37
PID 1968 wrote to memory of 1640	1968	csrsll.exe	37
PID 1968 wrote to memory of 1640	1968	csrsll.exe	37
PID 1968 wrote to memory of 1640	1968	csrsll.exe	37
PID 1968 wrote to memory of 1640	1968	csrsll.exe	37
PID 1968 wrote to memory of 1640	1968	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe
"C:\Users\Admin\AppData\Local\Temp\4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Users\Admin\AppData\Local\Temp\4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe
  "C:\Users\Admin\AppData\Local\Temp\4010c144a88c6a557bddcda7034fec05d6738ae17ef987084a778ae25028b7beN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2596
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\SKTQL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2044
  - - 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:484
- - 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:1968
  - - 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:900
  - - 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:1640

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\SKTQL.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
4d7d81332fdbdb4dcda09c486bf02cc0

SHA1
fef2a462a55880e911fbf85ddedf1c3fa1729474

SHA256
8a31056691340d1cc1f9cf96621f31796fd22cab3669bcd979d48832f473de99

SHA512
06998a4d35da2c1706eed82815295d219bed19b6946c668d7d53252d1f2b602ec163dc99586dfc7828a43b367a7ce14f0dbdadaf7f9c2848a698f92464fabf15

Download Submit
memory/900-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1640-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1640-247-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1968-253-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1968-213-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1968-176-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/1968-165-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1968-155-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2504-71-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2504-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2504-96-0x0000000002000000-0x0000000002053000-memory.dmp

Filesize
332KB

Download
memory/2504-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2504-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2504-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2504-18-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2504-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2504-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2504-61-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2504-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2504-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2504-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2504-79-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/2596-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-245-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/2596-148-0x0000000003440000-0x0000000003493000-memory.dmp

Filesize
332KB

Download
memory/2596-145-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/2596-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2596-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-146-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/2596-147-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/2596-210-0x0000000003440000-0x0000000003493000-memory.dmp

Filesize
332KB

Download
memory/2596-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-248-0x0000000003440000-0x0000000003493000-memory.dmp

Filesize
332KB

Download
memory/2596-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-246-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/2596-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads