modiloader | fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786

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
16/01/2025, 22:06

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General

Target

fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe
Size

300KB
MD5

3965fc25172d9b4663eee939cb7c424a
SHA1

99f703d3b0e83acb885503cec83e7705a290c4df
SHA256

fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786
SHA512

3d1e77a2a6bcb6503159de468ae1d521b8c4b0e2e53d8bc89126da4905760a69530272764b930b2c59cba3bd9528c6182397b4df2c36f6a7e637ad91fe71f5f6
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38Gv:UsxD5cwohO+O1sVG0/pZ6iPC8d

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 2 IoCs

resource	yara_rule
behavioral1/memory/1824-243-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1824-251-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2852	csrsll.exe
688	csrsll.exe
1824	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2640	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe
2640	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe
2640	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe
2640	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe
2640	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.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 2260 set thread context of 2640	2260	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	31
PID 2852 set thread context of 688	2852	csrsll.exe	36
PID 2852 set thread context of 1824	2852	csrsll.exe	37

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2640-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2640-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2640-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2640-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2640-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2640-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2640-146-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1824-243-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2640-249-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1824-251-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/688-250-0x0000000000400000-0x000000000040B000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe

Suspicious use of AdjustPrivilegeToken 63 IoCs

description	pid	Process
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2260	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe
2640	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe
2852	csrsll.exe
688	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 2640	2260	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	31
PID 2260 wrote to memory of 2640	2260	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	31
PID 2260 wrote to memory of 2640	2260	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	31
PID 2260 wrote to memory of 2640	2260	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	31
PID 2260 wrote to memory of 2640	2260	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	31
PID 2260 wrote to memory of 2640	2260	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	31
PID 2260 wrote to memory of 2640	2260	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	31
PID 2260 wrote to memory of 2640	2260	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	31
PID 2640 wrote to memory of 2952	2640	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	32
PID 2640 wrote to memory of 2952	2640	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	32
PID 2640 wrote to memory of 2952	2640	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	32
PID 2640 wrote to memory of 2952	2640	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	32
PID 2952 wrote to memory of 2608	2952	cmd.exe	34
PID 2952 wrote to memory of 2608	2952	cmd.exe	34
PID 2952 wrote to memory of 2608	2952	cmd.exe	34
PID 2952 wrote to memory of 2608	2952	cmd.exe	34
PID 2640 wrote to memory of 2852	2640	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	35
PID 2640 wrote to memory of 2852	2640	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	35
PID 2640 wrote to memory of 2852	2640	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	35
PID 2640 wrote to memory of 2852	2640	fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe	35
PID 2852 wrote to memory of 688	2852	csrsll.exe	36
PID 2852 wrote to memory of 688	2852	csrsll.exe	36
PID 2852 wrote to memory of 688	2852	csrsll.exe	36
PID 2852 wrote to memory of 688	2852	csrsll.exe	36
PID 2852 wrote to memory of 688	2852	csrsll.exe	36
PID 2852 wrote to memory of 688	2852	csrsll.exe	36
PID 2852 wrote to memory of 688	2852	csrsll.exe	36
PID 2852 wrote to memory of 688	2852	csrsll.exe	36
PID 2852 wrote to memory of 1824	2852	csrsll.exe	37
PID 2852 wrote to memory of 1824	2852	csrsll.exe	37
PID 2852 wrote to memory of 1824	2852	csrsll.exe	37
PID 2852 wrote to memory of 1824	2852	csrsll.exe	37
PID 2852 wrote to memory of 1824	2852	csrsll.exe	37
PID 2852 wrote to memory of 1824	2852	csrsll.exe	37
PID 2852 wrote to memory of 1824	2852	csrsll.exe	37
PID 2852 wrote to memory of 1824	2852	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe
"C:\Users\Admin\AppData\Local\Temp\fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Users\Admin\AppData\Local\Temp\fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe
  "C:\Users\Admin\AppData\Local\Temp\fbdea2037b42365f2d6c43d5f7fa36c53f0ba6e05a3d4b6ed2711f083c9ce786.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\MXUAS.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2952
  - - 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:2608
- - 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:2852
  - - 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:688
  - - 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:1824

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\MXUAS.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
731c7ef17b8866033042ad83fd4a4ecf

SHA1
a584fcee515d73f63a172ad9e427059fdf9344a9

SHA256
3c89ddae8a6e483152e9391b8831409073a6e383308d80dbfbcf95aa086b1d32

SHA512
f022e6d6f03c81de4244a99a63924ee6a1e3863ec61ba1d803a05f8cfb0ac17d54c9d0e61ae0ffc6d6bc5a91d098f0604476b15248aaa53dc6739a1e32cb35d7

Download Submit
memory/688-250-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1824-251-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1824-243-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2260-69-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2260-59-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2260-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2260-86-0x00000000003B0000-0x00000000003B2000-memory.dmp

Filesize
8KB

Download
memory/2260-89-0x00000000003D0000-0x00000000003D2000-memory.dmp

Filesize
8KB

Download
memory/2260-85-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/2260-77-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/2260-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2260-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2260-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2260-39-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2260-27-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2640-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2640-146-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-249-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2640-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2852-150-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2852-160-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2852-172-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads