modiloader | 566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699

Analysis

max time kernel
149s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 14:42

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General

Target

566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe
Size

90KB
MD5

c31a1be0f98dd3068aac791043a3c157
SHA1

4e7330d7df2d87b2395f512a7f49dcc26a4ef656
SHA256

566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699
SHA512

40e1b2bceb4d4f5527db969ea1bdebb22611bcb60432d6d3baaec93d7a1842a14d560b5e83c0d35a57b730a0004728a1639a50cf2c61b0ae83819c54abbd4149
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDE:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3G

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/1340-261-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2912	csrsll.exe
1784	csrsll.exe
1340	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
376	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe
376	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe
376	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe
376	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe
376	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.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-1-5-21-2039016743-699959520-214465309-1000\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 2944 set thread context of 376	2944	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	30
PID 2912 set thread context of 1784	2912	csrsll.exe	35
PID 2912 set thread context of 1340	2912	csrsll.exe	36

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2944-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2944-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2944-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/376-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/376-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/376-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/376-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/376-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2944-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/376-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0031000000017021-131.dat	upx
behavioral1/memory/376-145-0x0000000003280000-0x00000000032D3000-memory.dmp	upx
behavioral1/memory/376-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2912-223-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1340-247-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2912-251-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/376-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1784-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1340-261-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.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	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2944	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe
376	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe
2912	csrsll.exe
1784	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 376	2944	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	30
PID 2944 wrote to memory of 376	2944	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	30
PID 2944 wrote to memory of 376	2944	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	30
PID 2944 wrote to memory of 376	2944	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	30
PID 2944 wrote to memory of 376	2944	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	30
PID 2944 wrote to memory of 376	2944	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	30
PID 2944 wrote to memory of 376	2944	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	30
PID 2944 wrote to memory of 376	2944	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	30
PID 376 wrote to memory of 2088	376	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	31
PID 376 wrote to memory of 2088	376	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	31
PID 376 wrote to memory of 2088	376	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	31
PID 376 wrote to memory of 2088	376	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	31
PID 2088 wrote to memory of 2936	2088	cmd.exe	33
PID 2088 wrote to memory of 2936	2088	cmd.exe	33
PID 2088 wrote to memory of 2936	2088	cmd.exe	33
PID 2088 wrote to memory of 2936	2088	cmd.exe	33
PID 376 wrote to memory of 2912	376	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	34
PID 376 wrote to memory of 2912	376	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	34
PID 376 wrote to memory of 2912	376	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	34
PID 376 wrote to memory of 2912	376	566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe	34
PID 2912 wrote to memory of 1784	2912	csrsll.exe	35
PID 2912 wrote to memory of 1784	2912	csrsll.exe	35
PID 2912 wrote to memory of 1784	2912	csrsll.exe	35
PID 2912 wrote to memory of 1784	2912	csrsll.exe	35
PID 2912 wrote to memory of 1784	2912	csrsll.exe	35
PID 2912 wrote to memory of 1784	2912	csrsll.exe	35
PID 2912 wrote to memory of 1784	2912	csrsll.exe	35
PID 2912 wrote to memory of 1784	2912	csrsll.exe	35
PID 2912 wrote to memory of 1340	2912	csrsll.exe	36
PID 2912 wrote to memory of 1340	2912	csrsll.exe	36
PID 2912 wrote to memory of 1340	2912	csrsll.exe	36
PID 2912 wrote to memory of 1340	2912	csrsll.exe	36
PID 2912 wrote to memory of 1340	2912	csrsll.exe	36
PID 2912 wrote to memory of 1340	2912	csrsll.exe	36
PID 2912 wrote to memory of 1340	2912	csrsll.exe	36
PID 2912 wrote to memory of 1340	2912	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe
"C:\Users\Admin\AppData\Local\Temp\566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2944
- C:\Users\Admin\AppData\Local\Temp\566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe
  "C:\Users\Admin\AppData\Local\Temp\566855da71c4512e49ace1e033d3dd890cf822fd4d2936ff869bb63581cc5699.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:376
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\WVJKG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2088
  - - 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:2936
- - 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:2912
  - - 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:1784
  - - 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:1340

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\WVJKG.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
9b0c94cce7ea610fe3a291fcb470d6f0

SHA1
a266d29657955421a4073f82fd382999cf2e6ae9

SHA256
589e0a03dd1d7a012f1ff59c1c2dfba59d2c0172b51601c8bf0a76eb492ddf38

SHA512
ef8defd8abe486bfd5e818bdf4fe969dbf2e956487877d5d22a9ff075b76c698fde225f6b7512f9a36911b16307bd70fe4821b9d96b67cd0d1215c78f7ba6408

Download Submit
memory/376-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/376-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/376-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/376-242-0x0000000003280000-0x00000000032D3000-memory.dmp

Filesize
332KB

Download
memory/376-146-0x0000000003280000-0x00000000032D3000-memory.dmp

Filesize
332KB

Download
memory/376-147-0x0000000003280000-0x00000000032D3000-memory.dmp

Filesize
332KB

Download
memory/376-148-0x0000000003280000-0x00000000032D3000-memory.dmp

Filesize
332KB

Download
memory/376-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/376-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/376-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/376-145-0x0000000003280000-0x00000000032D3000-memory.dmp

Filesize
332KB

Download
memory/376-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/376-240-0x0000000003280000-0x00000000032D3000-memory.dmp

Filesize
332KB

Download
memory/376-239-0x0000000003280000-0x00000000032D3000-memory.dmp

Filesize
332KB

Download
memory/376-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/376-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/376-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1340-261-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1340-247-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1784-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2912-223-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2912-176-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2912-165-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2912-251-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2912-155-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2944-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2944-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2944-29-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/2944-96-0x0000000002740000-0x0000000002793000-memory.dmp

Filesize
332KB

Download
memory/2944-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2944-79-0x0000000001E80000-0x0000000001E82000-memory.dmp

Filesize
8KB

Download
memory/2944-61-0x0000000001E40000-0x0000000001E41000-memory.dmp

Filesize
4KB

Download
memory/2944-71-0x0000000001E60000-0x0000000001E61000-memory.dmp

Filesize
4KB

Download
memory/2944-41-0x0000000001E00000-0x0000000001E01000-memory.dmp

Filesize
4KB

Download
memory/2944-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2944-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2944-15-0x0000000000590000-0x0000000000591000-memory.dmp

Filesize
4KB

Download
memory/2944-5-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2944-3-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads