modiloader | 6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd

Analysis

max time kernel
119s
max time network
20s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 17:14

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General

Target

6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
Size

90KB
MD5

b38a9d9e18b27a930df5cb6a35f65ba6
SHA1

8b65bda7495123b70a2c030717b1931f18d3c1a7
SHA256

6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd
SHA512

b3294d3c74a1af28647753b4c3e0cad2e499fc7555d6e9b601af175a15125c7132afc389472761ca3062c1a66c826ee715f82f25adf4af062299cbb091048abd
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDF:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3/

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/1596-256-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
584	csrsll.exe
3044	csrsll.exe
1596	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1232	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
1232	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
1232	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
1232	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
1232	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.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 552 set thread context of 1232	552	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	30
PID 584 set thread context of 3044	584	csrsll.exe	36
PID 584 set thread context of 1596	584	csrsll.exe	37

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/552-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1232-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/552-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1232-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1232-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/552-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1232-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/552-105-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1232-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1232-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000d00000001226d-131.dat	upx
behavioral1/memory/584-147-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1232-150-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/584-210-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/584-244-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1596-242-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1232-247-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3044-253-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1596-256-0x0000000000400000-0x0000000000414000-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	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe
Token: SeDebugPrivilege	3044	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
552	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
1232	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
584	csrsll.exe
3044	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 552 wrote to memory of 1232	552	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	30
PID 552 wrote to memory of 1232	552	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	30
PID 552 wrote to memory of 1232	552	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	30
PID 552 wrote to memory of 1232	552	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	30
PID 552 wrote to memory of 1232	552	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	30
PID 552 wrote to memory of 1232	552	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	30
PID 552 wrote to memory of 1232	552	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	30
PID 552 wrote to memory of 1232	552	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	30
PID 1232 wrote to memory of 2068	1232	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	31
PID 1232 wrote to memory of 2068	1232	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	31
PID 1232 wrote to memory of 2068	1232	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	31
PID 1232 wrote to memory of 2068	1232	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	31
PID 2068 wrote to memory of 596	2068	cmd.exe	33
PID 2068 wrote to memory of 596	2068	cmd.exe	33
PID 2068 wrote to memory of 596	2068	cmd.exe	33
PID 2068 wrote to memory of 596	2068	cmd.exe	33
PID 1232 wrote to memory of 584	1232	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	34
PID 1232 wrote to memory of 584	1232	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	34
PID 1232 wrote to memory of 584	1232	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	34
PID 1232 wrote to memory of 584	1232	6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe	34
PID 584 wrote to memory of 3044	584	csrsll.exe	36
PID 584 wrote to memory of 3044	584	csrsll.exe	36
PID 584 wrote to memory of 3044	584	csrsll.exe	36
PID 584 wrote to memory of 3044	584	csrsll.exe	36
PID 584 wrote to memory of 3044	584	csrsll.exe	36
PID 584 wrote to memory of 3044	584	csrsll.exe	36
PID 584 wrote to memory of 3044	584	csrsll.exe	36
PID 584 wrote to memory of 3044	584	csrsll.exe	36
PID 584 wrote to memory of 1596	584	csrsll.exe	37
PID 584 wrote to memory of 1596	584	csrsll.exe	37
PID 584 wrote to memory of 1596	584	csrsll.exe	37
PID 584 wrote to memory of 1596	584	csrsll.exe	37
PID 584 wrote to memory of 1596	584	csrsll.exe	37
PID 584 wrote to memory of 1596	584	csrsll.exe	37
PID 584 wrote to memory of 1596	584	csrsll.exe	37
PID 584 wrote to memory of 1596	584	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
"C:\Users\Admin\AppData\Local\Temp\6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:552
- C:\Users\Admin\AppData\Local\Temp\6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe
  "C:\Users\Admin\AppData\Local\Temp\6d5528cd16dc085039cb866894961d662d9ba124070c4136e8a2ba024071a6cd.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1232
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\IECSY.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2068
  - - 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:596
- - 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:584
  - - 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:3044
  - - 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:1596

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\IECSY.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
6563ea261852c254ba7214b3ee1cd403

SHA1
76c09091e9cf022485f51aab9030f292ae1ff109

SHA256
7024033a423116935992a54bfde39344ce0c6d560c55a746685421239cda94c6

SHA512
cc7dcf03bb636405508bd088f96d9ce54a55a2359e2a4e43923fbf7ae071854a6863a4e2260db9ca4f947c6e185a35c498b1fcfcb8ad5e720f42f97948b41b14

Download Submit
memory/552-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/552-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/552-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/552-79-0x0000000000390000-0x0000000000392000-memory.dmp

Filesize
8KB

Download
memory/552-71-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/552-96-0x0000000000490000-0x00000000004E3000-memory.dmp

Filesize
332KB

Download
memory/552-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/552-16-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/552-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/552-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/552-105-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/552-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/552-61-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/552-41-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/584-163-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/584-153-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/584-244-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/584-210-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/584-174-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/584-147-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1232-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1232-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1232-145-0x00000000034A0000-0x00000000034F3000-memory.dmp

Filesize
332KB

Download
memory/1232-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1232-150-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1232-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1232-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1232-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1232-247-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1232-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1232-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1596-242-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1596-256-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3044-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads