modiloader | 47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0ea

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
10-11-2024 22:11

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General

Target

47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe
Size

90KB
MD5

b25c07ed6129a94e5934f0e213734430
SHA1

4bbbf5f7e94b13c34cb2a5870780c761c2d101aa
SHA256

47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0ea
SHA512

291d73c2db07c29eeb72c1085ffc6174534875440bdfdcae78d4e7430daeae1dda2393767d370627a8d610860cf23c3c483216b3833b6236c85be1826f944574
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 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3192-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3192-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3192-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3192-64-0x0000000000400000-0x0000000000414000-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

Processes:

47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid	Process
1088	csrsll.exe
2372	csrsll.exe
3192	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.execsrsll.exe

description	pid	Process	procid_target
PID 5008 set thread context of 1288	5008	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	93
PID 1088 set thread context of 2372	1088	csrsll.exe	101
PID 1088 set thread context of 3192	1088	csrsll.exe	102

UPX packed file 20 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/5008-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5008-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1288-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1288-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1288-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5008-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0010000000023b63-30.dat	upx
behavioral2/memory/1088-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1288-41-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1088-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1088-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3192-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3192-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3192-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3192-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3192-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1088-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1288-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2372-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3192-64-0x0000000000400000-0x0000000000414000-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

Processes:

47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.execmd.exereg.execsrsll.execsrsll.execsrsll.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.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

Processes:

csrsll.exe

description	pid	Process
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe
Token: SeDebugPrivilege	2372	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.execsrsll.execsrsll.exe

pid	Process
5008	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe
1288	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe
1088	csrsll.exe
2372	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.execmd.execsrsll.exe

description	pid	Process	procid_target
PID 5008 wrote to memory of 1288	5008	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	93
PID 5008 wrote to memory of 1288	5008	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	93
PID 5008 wrote to memory of 1288	5008	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	93
PID 5008 wrote to memory of 1288	5008	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	93
PID 5008 wrote to memory of 1288	5008	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	93
PID 5008 wrote to memory of 1288	5008	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	93
PID 5008 wrote to memory of 1288	5008	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	93
PID 5008 wrote to memory of 1288	5008	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	93
PID 1288 wrote to memory of 4544	1288	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	94
PID 1288 wrote to memory of 4544	1288	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	94
PID 1288 wrote to memory of 4544	1288	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	94
PID 4544 wrote to memory of 544	4544	cmd.exe	97
PID 4544 wrote to memory of 544	4544	cmd.exe	97
PID 4544 wrote to memory of 544	4544	cmd.exe	97
PID 1288 wrote to memory of 1088	1288	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	98
PID 1288 wrote to memory of 1088	1288	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	98
PID 1288 wrote to memory of 1088	1288	47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe	98
PID 1088 wrote to memory of 2372	1088	csrsll.exe	101
PID 1088 wrote to memory of 2372	1088	csrsll.exe	101
PID 1088 wrote to memory of 2372	1088	csrsll.exe	101
PID 1088 wrote to memory of 2372	1088	csrsll.exe	101
PID 1088 wrote to memory of 2372	1088	csrsll.exe	101
PID 1088 wrote to memory of 2372	1088	csrsll.exe	101
PID 1088 wrote to memory of 2372	1088	csrsll.exe	101
PID 1088 wrote to memory of 2372	1088	csrsll.exe	101
PID 1088 wrote to memory of 3192	1088	csrsll.exe	102
PID 1088 wrote to memory of 3192	1088	csrsll.exe	102
PID 1088 wrote to memory of 3192	1088	csrsll.exe	102
PID 1088 wrote to memory of 3192	1088	csrsll.exe	102
PID 1088 wrote to memory of 3192	1088	csrsll.exe	102
PID 1088 wrote to memory of 3192	1088	csrsll.exe	102
PID 1088 wrote to memory of 3192	1088	csrsll.exe	102
PID 1088 wrote to memory of 3192	1088	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe
"C:\Users\Admin\AppData\Local\Temp\47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5008
- C:\Users\Admin\AppData\Local\Temp\47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe
  "C:\Users\Admin\AppData\Local\Temp\47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1288
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NKJNA.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4544
  - - 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:544
- - 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:1088
  - - 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:2372
  - - 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:3192

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\NKJNA.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
34a6be178f867d8b8ae0c54930134567

SHA1
b82724b77d0c66aae14d2c0304bf856285cf242b

SHA256
b78fd8511a19458de7ebb883983369bba34199252c6f6aabb27546408d5a9469

SHA512
2fd6944e502dcc7cf4de6872a2752d201bf2a78206928943de0ba29886547c13d5a17627ee0a5fd92ad7b14b91337cc31d1fb42abcff3b21b1ec3f4a7debcc66

Download Submit
memory/1088-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1088-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1088-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1088-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1288-41-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1288-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1288-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1288-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1288-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1288-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2372-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3192-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3192-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3192-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3192-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3192-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3192-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5008-4-0x0000000002910000-0x0000000002912000-memory.dmp

Filesize
8KB

Download
memory/5008-6-0x0000000002930000-0x0000000002932000-memory.dmp

Filesize
8KB

Download
memory/5008-3-0x0000000002900000-0x0000000002902000-memory.dmp

Filesize
8KB

Download
memory/5008-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5008-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5008-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download