modiloader | 090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dc

Analysis

max time kernel
119s
max time network
20s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 11:52

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General

Target

090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe
Size

90KB
MD5

b05e479057b1426c5ba9e9a0d934d990
SHA1

42dc94adb7b48ea8ed47a3ff3d19209d84093690
SHA256

090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dc
SHA512

c3b1755efaaacd8020d1dfb71c45997e900503a7bc9190615586a0488e0c26aaa991769f9aadc69b8964ba07f8e1eba8859246afef5d269e847a53bf30725070
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/680-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2744	csrsll.exe
1912	csrsll.exe
680	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2936	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe
2936	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe
2936	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe
2936	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe
2936	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.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 1796 set thread context of 2936	1796	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	30
PID 2744 set thread context of 1912	2744	csrsll.exe	36
PID 2744 set thread context of 680	2744	csrsll.exe	37

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1796-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1796-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1796-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2936-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1796-106-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2936-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2936-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2936-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2936-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2936-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a0000000120f9-131.dat	upx
behavioral1/memory/2936-133-0x0000000002630000-0x0000000002683000-memory.dmp	upx
behavioral1/memory/2936-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2744-227-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2936-226-0x0000000002630000-0x0000000002683000-memory.dmp	upx
behavioral1/memory/2936-253-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2744-250-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/680-248-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1912-247-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1912-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/680-260-0x0000000000400000-0x0000000000414000-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	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.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	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1796	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe
2936	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe
2744	csrsll.exe
1912	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 2936	1796	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	30
PID 1796 wrote to memory of 2936	1796	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	30
PID 1796 wrote to memory of 2936	1796	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	30
PID 1796 wrote to memory of 2936	1796	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	30
PID 1796 wrote to memory of 2936	1796	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	30
PID 1796 wrote to memory of 2936	1796	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	30
PID 1796 wrote to memory of 2936	1796	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	30
PID 1796 wrote to memory of 2936	1796	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	30
PID 2936 wrote to memory of 1764	2936	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	31
PID 2936 wrote to memory of 1764	2936	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	31
PID 2936 wrote to memory of 1764	2936	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	31
PID 2936 wrote to memory of 1764	2936	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	31
PID 1764 wrote to memory of 3024	1764	cmd.exe	33
PID 1764 wrote to memory of 3024	1764	cmd.exe	33
PID 1764 wrote to memory of 3024	1764	cmd.exe	33
PID 1764 wrote to memory of 3024	1764	cmd.exe	33
PID 2936 wrote to memory of 2744	2936	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	34
PID 2936 wrote to memory of 2744	2936	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	34
PID 2936 wrote to memory of 2744	2936	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	34
PID 2936 wrote to memory of 2744	2936	090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe	34
PID 2744 wrote to memory of 1912	2744	csrsll.exe	36
PID 2744 wrote to memory of 1912	2744	csrsll.exe	36
PID 2744 wrote to memory of 1912	2744	csrsll.exe	36
PID 2744 wrote to memory of 1912	2744	csrsll.exe	36
PID 2744 wrote to memory of 1912	2744	csrsll.exe	36
PID 2744 wrote to memory of 1912	2744	csrsll.exe	36
PID 2744 wrote to memory of 1912	2744	csrsll.exe	36
PID 2744 wrote to memory of 1912	2744	csrsll.exe	36
PID 2744 wrote to memory of 680	2744	csrsll.exe	37
PID 2744 wrote to memory of 680	2744	csrsll.exe	37
PID 2744 wrote to memory of 680	2744	csrsll.exe	37
PID 2744 wrote to memory of 680	2744	csrsll.exe	37
PID 2744 wrote to memory of 680	2744	csrsll.exe	37
PID 2744 wrote to memory of 680	2744	csrsll.exe	37
PID 2744 wrote to memory of 680	2744	csrsll.exe	37
PID 2744 wrote to memory of 680	2744	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe
"C:\Users\Admin\AppData\Local\Temp\090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1796
- C:\Users\Admin\AppData\Local\Temp\090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe
  "C:\Users\Admin\AppData\Local\Temp\090790edbad39b81729c9b278f4d3b31abb2480819c9177cf8c9a31aff0080dcN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2936
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\GSXTH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1764
  - - 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:3024
- - 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:2744
  - - 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:1912
  - - 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:680

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\GSXTH.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
87fe5a3a86a2471fc27adaa26bf92d16

SHA1
8df3b2ed852035c160334da487cccc631c3bd594

SHA256
7487c81694b7643caece169e2f6d8c15c34e65bbfaadf7f765c7cab966fb4614

SHA512
65ea50f5e557894b70b0f84c0fde37b3bf3857d086f5e8378d607913986f632e7e0976d4c7aa6a2ebb537f3b2a82f3ec1e497abd8d109e38974f9e5b752c8b32

Download Submit
memory/680-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/680-248-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1796-106-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1796-71-0x00000000004E0000-0x00000000004E1000-memory.dmp

Filesize
4KB

Download
memory/1796-29-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1796-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1796-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1796-80-0x0000000000500000-0x0000000000502000-memory.dmp

Filesize
8KB

Download
memory/1796-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1796-103-0x0000000002530000-0x0000000002583000-memory.dmp

Filesize
332KB

Download
memory/1796-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1796-15-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1796-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1796-61-0x00000000004C0000-0x00000000004C1000-memory.dmp

Filesize
4KB

Download
memory/1796-41-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/1796-17-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1912-247-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1912-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2744-176-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2744-165-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2744-155-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2744-227-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2744-250-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2936-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2936-147-0x0000000002630000-0x0000000002683000-memory.dmp

Filesize
332KB

Download
memory/2936-148-0x0000000002630000-0x0000000002683000-memory.dmp

Filesize
332KB

Download
memory/2936-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2936-133-0x0000000002630000-0x0000000002683000-memory.dmp

Filesize
332KB

Download
memory/2936-226-0x0000000002630000-0x0000000002683000-memory.dmp

Filesize
332KB

Download
memory/2936-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2936-144-0x0000000002630000-0x0000000002683000-memory.dmp

Filesize
332KB

Download
memory/2936-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2936-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2936-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2936-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2936-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2936-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2936-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads