modiloader | ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2024 05:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe
Size

90KB
MD5

7426c44f03f4f348dccc35c7c92d377f
SHA1

baa65a58514e1d3339366c17253c16e361cc4bec
SHA256

ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79
SHA512

01dd6c4976edc012b6461d2ae47dfc68be1a8cbbfad58181ba446bce4972bb9c7e18dcfcd3ab6f9f2938813b6e973590568b4e0afad262f03c2ef0a744fbdeae
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDi:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3o

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 4 IoCs

resource	yara_rule
behavioral2/memory/4512-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4512-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4512-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4512-63-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe

Executes dropped EXE 3 IoCs

pid	Process
4460	csrsll.exe
4892	csrsll.exe
4512	csrsll.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-1-5-21-3756129449-3121373848-4276368241-1000\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 4456 set thread context of 4400	4456	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	84
PID 4460 set thread context of 4892	4460	csrsll.exe	90
PID 4460 set thread context of 4512	4460	csrsll.exe	91

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4456-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4456-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4400-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4400-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4400-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4456-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0009000000023bc3-29.dat	upx
behavioral2/memory/4400-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4460-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4460-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4512-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4512-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4512-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4512-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4512-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4460-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4400-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4892-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4512-63-0x0000000000400000-0x0000000000414000-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	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	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4456	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe
4400	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe
4460	csrsll.exe
4892	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 4400	4456	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	84
PID 4456 wrote to memory of 4400	4456	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	84
PID 4456 wrote to memory of 4400	4456	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	84
PID 4456 wrote to memory of 4400	4456	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	84
PID 4456 wrote to memory of 4400	4456	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	84
PID 4456 wrote to memory of 4400	4456	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	84
PID 4456 wrote to memory of 4400	4456	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	84
PID 4456 wrote to memory of 4400	4456	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	84
PID 4400 wrote to memory of 1564	4400	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	85
PID 4400 wrote to memory of 1564	4400	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	85
PID 4400 wrote to memory of 1564	4400	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	85
PID 1564 wrote to memory of 3940	1564	cmd.exe	88
PID 1564 wrote to memory of 3940	1564	cmd.exe	88
PID 1564 wrote to memory of 3940	1564	cmd.exe	88
PID 4400 wrote to memory of 4460	4400	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	89
PID 4400 wrote to memory of 4460	4400	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	89
PID 4400 wrote to memory of 4460	4400	ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe	89
PID 4460 wrote to memory of 4892	4460	csrsll.exe	90
PID 4460 wrote to memory of 4892	4460	csrsll.exe	90
PID 4460 wrote to memory of 4892	4460	csrsll.exe	90
PID 4460 wrote to memory of 4892	4460	csrsll.exe	90
PID 4460 wrote to memory of 4892	4460	csrsll.exe	90
PID 4460 wrote to memory of 4892	4460	csrsll.exe	90
PID 4460 wrote to memory of 4892	4460	csrsll.exe	90
PID 4460 wrote to memory of 4892	4460	csrsll.exe	90
PID 4460 wrote to memory of 4512	4460	csrsll.exe	91
PID 4460 wrote to memory of 4512	4460	csrsll.exe	91
PID 4460 wrote to memory of 4512	4460	csrsll.exe	91
PID 4460 wrote to memory of 4512	4460	csrsll.exe	91
PID 4460 wrote to memory of 4512	4460	csrsll.exe	91
PID 4460 wrote to memory of 4512	4460	csrsll.exe	91
PID 4460 wrote to memory of 4512	4460	csrsll.exe	91
PID 4460 wrote to memory of 4512	4460	csrsll.exe	91

C:\Users\Admin\AppData\Local\Temp\ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe
"C:\Users\Admin\AppData\Local\Temp\ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Users\Admin\AppData\Local\Temp\ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe
  "C:\Users\Admin\AppData\Local\Temp\ab7c3007581704138fbc4961d95fbb779c6ee52a1f4408dc3bbc8b64b1abed79.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4400
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\IWWKL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1564
  - - 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:3940
- - 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:4460
  - - 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:4892
  - - 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:4512

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\IWWKL.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
ed7c117d7ac99ef2f377a1dfd83c088f

SHA1
2cbcacb8ab72ea782a17a65871e14ce5c8b89b1a

SHA256
a098d30044c220c8f451a0e3940b2ebe0d74e085480ae0094e106042192f8a91

SHA512
c1a57915039ad01584fd0a7461ac2e5c13671fb564e7400b5eba77fbc1f4468be4d13855e42224f3ae37a36daeb979a1383b8feae5aa6300d8aacce68ec5139f

Download Submit
memory/4400-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4400-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4400-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4400-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4400-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4456-6-0x0000000002450000-0x0000000002452000-memory.dmp

Filesize
8KB

Download
memory/4456-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4456-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4456-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4456-4-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/4456-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4460-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4460-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4460-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4512-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4892-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads