modiloader | 7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e

Analysis

max time kernel
119s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2024, 15:46

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General

Target

7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe
Size

90KB
MD5

5f07e6c726838e9f4598bafeb66b9fa1
SHA1

2246d3aafd59936ee765faf23574bba40facdd5f
SHA256

7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e
SHA512

1cbe2eee9ac01b802a42ff5248ca752b240ebaa748b63e6730c94e80d6a02b0d3ef94739825ae3997ac075fe95f8814735b03e8b7a349aa6b2e5495410dd7dba
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDw:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE32

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/1720-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1720-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1720-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1720-63-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe

Executes dropped EXE 3 IoCs

pid	Process
4796	csrsll.exe
1308	csrsll.exe
1720	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-1-5-21-4089630652-1596403869-279772308-1000\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 4616 set thread context of 1000	4616	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	82
PID 4796 set thread context of 1308	4796	csrsll.exe	95
PID 4796 set thread context of 1720	4796	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4616-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4616-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1000-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1000-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4616-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1000-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023bf9-29.dat	upx
behavioral2/memory/1000-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4796-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4796-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1720-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1720-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1720-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1720-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4796-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1720-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1000-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1308-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1720-63-0x0000000000400000-0x0000000000414000-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	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.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	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4616	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe
1000	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe
4796	csrsll.exe
1308	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4616 wrote to memory of 1000	4616	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	82
PID 4616 wrote to memory of 1000	4616	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	82
PID 4616 wrote to memory of 1000	4616	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	82
PID 4616 wrote to memory of 1000	4616	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	82
PID 4616 wrote to memory of 1000	4616	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	82
PID 4616 wrote to memory of 1000	4616	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	82
PID 4616 wrote to memory of 1000	4616	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	82
PID 4616 wrote to memory of 1000	4616	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	82
PID 1000 wrote to memory of 3920	1000	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	85
PID 1000 wrote to memory of 3920	1000	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	85
PID 1000 wrote to memory of 3920	1000	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	85
PID 3920 wrote to memory of 3464	3920	cmd.exe	88
PID 3920 wrote to memory of 3464	3920	cmd.exe	88
PID 3920 wrote to memory of 3464	3920	cmd.exe	88
PID 1000 wrote to memory of 4796	1000	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	89
PID 1000 wrote to memory of 4796	1000	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	89
PID 1000 wrote to memory of 4796	1000	7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe	89
PID 4796 wrote to memory of 1308	4796	csrsll.exe	95
PID 4796 wrote to memory of 1308	4796	csrsll.exe	95
PID 4796 wrote to memory of 1308	4796	csrsll.exe	95
PID 4796 wrote to memory of 1308	4796	csrsll.exe	95
PID 4796 wrote to memory of 1308	4796	csrsll.exe	95
PID 4796 wrote to memory of 1308	4796	csrsll.exe	95
PID 4796 wrote to memory of 1308	4796	csrsll.exe	95
PID 4796 wrote to memory of 1308	4796	csrsll.exe	95
PID 4796 wrote to memory of 1720	4796	csrsll.exe	96
PID 4796 wrote to memory of 1720	4796	csrsll.exe	96
PID 4796 wrote to memory of 1720	4796	csrsll.exe	96
PID 4796 wrote to memory of 1720	4796	csrsll.exe	96
PID 4796 wrote to memory of 1720	4796	csrsll.exe	96
PID 4796 wrote to memory of 1720	4796	csrsll.exe	96
PID 4796 wrote to memory of 1720	4796	csrsll.exe	96
PID 4796 wrote to memory of 1720	4796	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe
"C:\Users\Admin\AppData\Local\Temp\7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4616
- C:\Users\Admin\AppData\Local\Temp\7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe
  "C:\Users\Admin\AppData\Local\Temp\7d82fb6ab636b9f907feda70402204c9e7749745c1053003266d9eb1428efc3e.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1000
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\FKYHH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3920
  - - 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:3464
- - 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:4796
  - - 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:1308
  - - 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:1720

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
ad3dc74829becfba967c9ac1d1f5a5a2

SHA1
9a9862ca48de3970dc1980df05f24fddde33412d

SHA256
b160a1c758399a35cf8dafe7d59b56e643edc4c8f14640b43c4c8bea90bcb961

SHA512
251ec3ba4ae91ee5869ebcd88e39154a57099b370b273373a70734fcb8f2687514e875717cf44435c92991eec12fb7c75cd9a1f08bf4bd0e60904271e6299b88

Download Submit
memory/1000-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1000-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1000-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1000-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1000-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1000-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1308-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1720-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1720-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1720-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1720-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1720-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1720-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4616-3-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/4616-6-0x0000000002A80000-0x0000000002A82000-memory.dmp

Filesize
8KB

Download
memory/4616-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4616-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4616-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4616-5-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/4796-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4796-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4796-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads