modiloader | a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137

Analysis

max time kernel
119s
max time network
28s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
10-11-2024 23:32

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General

Target

a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe
Size

90KB
MD5

4e1fe5d481fc52139da248a300d9c1f0
SHA1

6455cb27c6083708a70d76fe7dd93ee629d32175
SHA256

a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137
SHA512

83b2f6c32214c9d450fe134960e2e15131686ee6e7aa54cf9bbd853b442c0280832122e4f5d8e9be4324eee0b880e3db5d8e3316ce18c74eedf38161867a092e
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/824-264-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2224	csrsll.exe
1020	csrsll.exe
824	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1128	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe
1128	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe
1128	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe
1128	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe
1128	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.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 2580 set thread context of 1128	2580	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	30
PID 2224 set thread context of 1020	2224	csrsll.exe	35
PID 2224 set thread context of 824	2224	csrsll.exe	36

UPX packed file 23 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2580-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2580-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2580-28-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2580-85-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1128-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1128-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1128-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1128-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2580-107-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1128-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1128-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1128-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000e000000012263-133.dat	upx
behavioral1/memory/1128-135-0x0000000002B40000-0x0000000002B93000-memory.dmp	upx
behavioral1/memory/2224-151-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1128-154-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2224-218-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2224-217-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/824-250-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2224-252-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1128-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1020-261-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/824-264-0x0000000000400000-0x0000000000414000-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	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.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 63 IoCs

description	pid	Process
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe
Token: SeDebugPrivilege	1020	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2580	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe
1128	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe
2224	csrsll.exe
1020	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2580 wrote to memory of 1128	2580	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	30
PID 2580 wrote to memory of 1128	2580	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	30
PID 2580 wrote to memory of 1128	2580	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	30
PID 2580 wrote to memory of 1128	2580	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	30
PID 2580 wrote to memory of 1128	2580	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	30
PID 2580 wrote to memory of 1128	2580	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	30
PID 2580 wrote to memory of 1128	2580	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	30
PID 2580 wrote to memory of 1128	2580	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	30
PID 1128 wrote to memory of 1560	1128	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	31
PID 1128 wrote to memory of 1560	1128	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	31
PID 1128 wrote to memory of 1560	1128	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	31
PID 1128 wrote to memory of 1560	1128	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	31
PID 1560 wrote to memory of 2208	1560	cmd.exe	33
PID 1560 wrote to memory of 2208	1560	cmd.exe	33
PID 1560 wrote to memory of 2208	1560	cmd.exe	33
PID 1560 wrote to memory of 2208	1560	cmd.exe	33
PID 1128 wrote to memory of 2224	1128	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	34
PID 1128 wrote to memory of 2224	1128	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	34
PID 1128 wrote to memory of 2224	1128	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	34
PID 1128 wrote to memory of 2224	1128	a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe	34
PID 2224 wrote to memory of 1020	2224	csrsll.exe	35
PID 2224 wrote to memory of 1020	2224	csrsll.exe	35
PID 2224 wrote to memory of 1020	2224	csrsll.exe	35
PID 2224 wrote to memory of 1020	2224	csrsll.exe	35
PID 2224 wrote to memory of 1020	2224	csrsll.exe	35
PID 2224 wrote to memory of 1020	2224	csrsll.exe	35
PID 2224 wrote to memory of 1020	2224	csrsll.exe	35
PID 2224 wrote to memory of 1020	2224	csrsll.exe	35
PID 2224 wrote to memory of 824	2224	csrsll.exe	36
PID 2224 wrote to memory of 824	2224	csrsll.exe	36
PID 2224 wrote to memory of 824	2224	csrsll.exe	36
PID 2224 wrote to memory of 824	2224	csrsll.exe	36
PID 2224 wrote to memory of 824	2224	csrsll.exe	36
PID 2224 wrote to memory of 824	2224	csrsll.exe	36
PID 2224 wrote to memory of 824	2224	csrsll.exe	36
PID 2224 wrote to memory of 824	2224	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe
"C:\Users\Admin\AppData\Local\Temp\a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2580
- C:\Users\Admin\AppData\Local\Temp\a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe
  "C:\Users\Admin\AppData\Local\Temp\a3f214aa48a7952f6406f00a9e2f8cb6406a14043a7fa30bd4d4019566b77137N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1128
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\YMQVC.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1560
  - - 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:2208
- - 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:2224
  - - 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:1020
  - - 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:824

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\YMQVC.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
ef5bdef3944dc963078cb13fc58d1a3f

SHA1
4c0e0da87e67e32202b8bedb89671bb58c6d6ae2

SHA256
c463bac5433bb7c1ed849535024f336d430eac032ffec9ab9f70f8044e09e9ef

SHA512
daad70453329215f9581a90f6d3e2c66e1defa1ace64a00dfae6d21d53e5645164238eb55afee0e4a8a68f24a18bc423a39b7ec8e561d1fdb83f6fa1c381c042

Download Submit
memory/824-264-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/824-250-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1020-261-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1128-216-0x0000000002B40000-0x0000000002B93000-memory.dmp

Filesize
332KB

Download
memory/1128-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1128-149-0x0000000002B40000-0x0000000002B93000-memory.dmp

Filesize
332KB

Download
memory/1128-150-0x0000000002B40000-0x0000000002B93000-memory.dmp

Filesize
332KB

Download
memory/1128-135-0x0000000002B40000-0x0000000002B93000-memory.dmp

Filesize
332KB

Download
memory/1128-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1128-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1128-154-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1128-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1128-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1128-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1128-98-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1128-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1128-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1128-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2224-158-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2224-179-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2224-252-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2224-168-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2224-217-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2224-218-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2224-151-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2580-73-0x0000000001D20000-0x0000000001D21000-memory.dmp

Filesize
4KB

Download
memory/2580-28-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2580-43-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/2580-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2580-107-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2580-17-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download
memory/2580-63-0x00000000004E0000-0x00000000004E1000-memory.dmp

Filesize
4KB

Download
memory/2580-31-0x0000000000480000-0x0000000000481000-memory.dmp

Filesize
4KB

Download
memory/2580-85-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2580-18-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2580-81-0x0000000001D40000-0x0000000001D42000-memory.dmp

Filesize
8KB

Download
memory/2580-7-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2580-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2580-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads