modiloader | 902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/11/2024, 03:10

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General

Target

902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe
Size

90KB
MD5

3b75c9153a686ee27ccf84027be64db5
SHA1

d7e17f894abb091009c0f2a97816d47a05221e72
SHA256

902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c
SHA512

ae6e727c4c0393477409d5734774cfedfe09f7bbbff38bb73d464a2d4d1ce06a4e39f76664804cab4759904e108db0ee14d2a7f11f161f0aa421dde7cab4a570
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD+:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE30

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 2 IoCs

resource	yara_rule
behavioral1/memory/1396-252-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1396-261-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2352	csrsll.exe
112	csrsll.exe
1396	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2676	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe
2676	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe
2676	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe
2676	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe
2676	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.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-1-5-21-3533259084-2542256011-65585152-1000\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 2816 set thread context of 2676	2816	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	31
PID 2352 set thread context of 112	2352	csrsll.exe	36
PID 2352 set thread context of 1396	2352	csrsll.exe	37

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2816-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2816-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2816-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2676-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2676-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2676-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2816-105-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2676-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2676-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2676-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-149.dat	upx
behavioral1/memory/2676-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2676-216-0x00000000030C0000-0x0000000003113000-memory.dmp	upx
behavioral1/memory/2352-220-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1396-252-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2352-254-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2676-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/112-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1396-261-0x0000000000400000-0x0000000000414000-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	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe
Token: SeDebugPrivilege	112	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2816	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe
2676	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe
2352	csrsll.exe
112	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2676	2816	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	31
PID 2816 wrote to memory of 2676	2816	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	31
PID 2816 wrote to memory of 2676	2816	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	31
PID 2816 wrote to memory of 2676	2816	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	31
PID 2816 wrote to memory of 2676	2816	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	31
PID 2816 wrote to memory of 2676	2816	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	31
PID 2816 wrote to memory of 2676	2816	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	31
PID 2816 wrote to memory of 2676	2816	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	31
PID 2676 wrote to memory of 1968	2676	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	32
PID 2676 wrote to memory of 1968	2676	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	32
PID 2676 wrote to memory of 1968	2676	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	32
PID 2676 wrote to memory of 1968	2676	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	32
PID 1968 wrote to memory of 2076	1968	cmd.exe	34
PID 1968 wrote to memory of 2076	1968	cmd.exe	34
PID 1968 wrote to memory of 2076	1968	cmd.exe	34
PID 1968 wrote to memory of 2076	1968	cmd.exe	34
PID 2676 wrote to memory of 2352	2676	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	35
PID 2676 wrote to memory of 2352	2676	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	35
PID 2676 wrote to memory of 2352	2676	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	35
PID 2676 wrote to memory of 2352	2676	902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe	35
PID 2352 wrote to memory of 112	2352	csrsll.exe	36
PID 2352 wrote to memory of 112	2352	csrsll.exe	36
PID 2352 wrote to memory of 112	2352	csrsll.exe	36
PID 2352 wrote to memory of 112	2352	csrsll.exe	36
PID 2352 wrote to memory of 112	2352	csrsll.exe	36
PID 2352 wrote to memory of 112	2352	csrsll.exe	36
PID 2352 wrote to memory of 112	2352	csrsll.exe	36
PID 2352 wrote to memory of 112	2352	csrsll.exe	36
PID 2352 wrote to memory of 1396	2352	csrsll.exe	37
PID 2352 wrote to memory of 1396	2352	csrsll.exe	37
PID 2352 wrote to memory of 1396	2352	csrsll.exe	37
PID 2352 wrote to memory of 1396	2352	csrsll.exe	37
PID 2352 wrote to memory of 1396	2352	csrsll.exe	37
PID 2352 wrote to memory of 1396	2352	csrsll.exe	37
PID 2352 wrote to memory of 1396	2352	csrsll.exe	37
PID 2352 wrote to memory of 1396	2352	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe
"C:\Users\Admin\AppData\Local\Temp\902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Users\Admin\AppData\Local\Temp\902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe
  "C:\Users\Admin\AppData\Local\Temp\902f7ab3de4970fcc7d73279ccb8041b2cea652decb1d79be0ce9a6a6af4336c.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2676
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\CWBXL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1968
  - - 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:2076
- - 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:2352
  - - 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:112
  - - 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:1396

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\CWBXL.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
261ad68c61d8d6cc721723b224c7dab6

SHA1
78fbc19a1bae5bcf50e86a4e272e4385a91b8274

SHA256
942aaded1cc6fea2f496502705ac1685719cbe935b7c6f24175f5d69178772ba

SHA512
9932c45ff773c8f07a22009eb73af3b37f723b0cdf618ffca584ad2fb3f08e750bbabbf8567029197cdb7ca668fe251c5ba29f037ad8d12e7ee976abf76068dd

Download Submit
memory/112-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1396-261-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1396-252-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2352-254-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2352-220-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2352-165-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2352-176-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2352-155-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2676-216-0x00000000030C0000-0x0000000003113000-memory.dmp

Filesize
332KB

Download
memory/2676-147-0x00000000030D0000-0x0000000003123000-memory.dmp

Filesize
332KB

Download
memory/2676-240-0x00000000030D0000-0x0000000003123000-memory.dmp

Filesize
332KB

Download
memory/2676-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2676-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2676-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2676-241-0x00000000030D0000-0x0000000003123000-memory.dmp

Filesize
332KB

Download
memory/2676-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2676-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2676-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2676-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2676-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2676-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2676-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2676-148-0x00000000030D0000-0x0000000003123000-memory.dmp

Filesize
332KB

Download
memory/2676-146-0x00000000030D0000-0x0000000003123000-memory.dmp

Filesize
332KB

Download
memory/2816-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2816-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2816-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2816-41-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2816-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2816-61-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2816-18-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2816-79-0x00000000003D0000-0x00000000003D2000-memory.dmp

Filesize
8KB

Download
memory/2816-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2816-90-0x0000000001F20000-0x0000000001F73000-memory.dmp

Filesize
332KB

Download
memory/2816-105-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2816-71-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2816-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2816-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads