modiloader | 5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b

Analysis

max time kernel
149s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 22:23

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General

Target

5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
Size

90KB
MD5

f9b86763ab016469f1c3b26eada65375
SHA1

bfd5face8500082f5467eb55db165657bf60b5db
SHA256

5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b
SHA512

dfbefa413a9f140bade987cbe62bd34f4bdb8c1fed1455f16a4f80e21a500839ca9f09cca3c80a66ee1c11c95d43079476311e96d4fff6c67b8ab225b34415cc
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/956-258-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
860	csrsll.exe
348	csrsll.exe
956	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.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-1-5-21-3551809350-4263495960-1443967649-1000\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 2624 set thread context of 944	2624	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	30
PID 860 set thread context of 348	860	csrsll.exe	35
PID 860 set thread context of 956	860	csrsll.exe	36

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2624-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2624-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2624-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/944-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2624-106-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/944-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/944-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/944-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/944-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/944-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a0000000120f9-131.dat	upx
behavioral1/memory/944-133-0x00000000026B0000-0x0000000002703000-memory.dmp	upx
behavioral1/memory/860-149-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/944-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/860-212-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/956-245-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/860-246-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/944-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/348-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/956-258-0x0000000000400000-0x0000000000414000-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	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.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 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe
Token: SeDebugPrivilege	348	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2624	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
860	csrsll.exe
348	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 944	2624	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	30
PID 2624 wrote to memory of 944	2624	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	30
PID 2624 wrote to memory of 944	2624	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	30
PID 2624 wrote to memory of 944	2624	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	30
PID 2624 wrote to memory of 944	2624	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	30
PID 2624 wrote to memory of 944	2624	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	30
PID 2624 wrote to memory of 944	2624	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	30
PID 2624 wrote to memory of 944	2624	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	30
PID 944 wrote to memory of 3036	944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	31
PID 944 wrote to memory of 3036	944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	31
PID 944 wrote to memory of 3036	944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	31
PID 944 wrote to memory of 3036	944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	31
PID 3036 wrote to memory of 620	3036	cmd.exe	33
PID 3036 wrote to memory of 620	3036	cmd.exe	33
PID 3036 wrote to memory of 620	3036	cmd.exe	33
PID 3036 wrote to memory of 620	3036	cmd.exe	33
PID 944 wrote to memory of 860	944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	34
PID 944 wrote to memory of 860	944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	34
PID 944 wrote to memory of 860	944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	34
PID 944 wrote to memory of 860	944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	34
PID 860 wrote to memory of 348	860	csrsll.exe	35
PID 860 wrote to memory of 348	860	csrsll.exe	35
PID 860 wrote to memory of 348	860	csrsll.exe	35
PID 860 wrote to memory of 348	860	csrsll.exe	35
PID 860 wrote to memory of 348	860	csrsll.exe	35
PID 860 wrote to memory of 348	860	csrsll.exe	35
PID 860 wrote to memory of 348	860	csrsll.exe	35
PID 860 wrote to memory of 348	860	csrsll.exe	35
PID 860 wrote to memory of 956	860	csrsll.exe	36
PID 860 wrote to memory of 956	860	csrsll.exe	36
PID 860 wrote to memory of 956	860	csrsll.exe	36
PID 860 wrote to memory of 956	860	csrsll.exe	36
PID 860 wrote to memory of 956	860	csrsll.exe	36
PID 860 wrote to memory of 956	860	csrsll.exe	36
PID 860 wrote to memory of 956	860	csrsll.exe	36
PID 860 wrote to memory of 956	860	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
"C:\Users\Admin\AppData\Local\Temp\5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Users\Admin\AppData\Local\Temp\5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
  "C:\Users\Admin\AppData\Local\Temp\5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:944
- - 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:3036
  - - 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:620
- - 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:860
  - - 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:348
  - - 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:956

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

Filesize
90KB

MD5
b970d7d7406db6c9addcaf4e94301b1b

SHA1
3b6a9ba665d24e19861189fbc8c3602e19ab8736

SHA256
2ccb9dbf316f47460abd943a6d076ff49b705c1cbb25bef1f7b3ac63480f0234

SHA512
6d9ec74739bddd5a839e1d04d03ceeee18ba6ddc5019cdab730388cb1c860b8237e150d09e1d3b9eb73c4559b130df6c033bddf5af4b2e54c9f97239d58c99ff

Download Submit
memory/348-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/860-246-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/860-165-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/860-176-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/860-212-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/860-155-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/860-149-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/944-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/944-133-0x00000000026B0000-0x0000000002703000-memory.dmp

Filesize
332KB

Download
memory/944-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/944-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/944-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/944-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/944-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/944-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/944-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/944-147-0x00000000026B0000-0x0000000002703000-memory.dmp

Filesize
332KB

Download
memory/944-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/944-146-0x00000000026B0000-0x0000000002703000-memory.dmp

Filesize
332KB

Download
memory/944-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/956-245-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/956-258-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2624-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2624-15-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2624-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2624-41-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2624-106-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2624-29-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2624-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2624-71-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2624-16-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2624-61-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2624-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2624-103-0x0000000002470000-0x00000000024C3000-memory.dmp

Filesize
332KB

Download
memory/2624-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2624-79-0x0000000000360000-0x0000000000362000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads