modiloader | 9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365a

Analysis

max time kernel
118s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 14:24

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General

Target

9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe
Size

90KB
MD5

81dcf8ffe4eca9a864d0791583f060c0
SHA1

e230e465e7c131022e9144952e953d9d9022a5c2
SHA256

9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365a
SHA512

08771b09d6565d8b78c7b3bf37363dc6e639bd7f20793e5265251348d2b01454857927c93391962346e3b88f870213abf85c9e086a34b5d414371c19c7fe2045
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDq:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE34

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/1048-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1048-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1048-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1048-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe

Executes dropped EXE 3 IoCs

pid	Process
3748	csrsll.exe
1124	csrsll.exe
1048	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-1-5-21-2437139445-1151884604-3026847218-1000\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 4688 set thread context of 2300	4688	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	83
PID 3748 set thread context of 1124	3748	csrsll.exe	97
PID 3748 set thread context of 1048	3748	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4688-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4688-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2300-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2300-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4688-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2300-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023c69-29.dat	upx
behavioral2/memory/2300-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3748-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3748-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1048-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1048-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1048-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1048-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3748-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1048-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2300-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1124-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1048-61-0x0000000000400000-0x0000000000414000-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	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe
Token: SeDebugPrivilege	1124	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4688	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe
2300	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe
3748	csrsll.exe
1124	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4688 wrote to memory of 2300	4688	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	83
PID 4688 wrote to memory of 2300	4688	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	83
PID 4688 wrote to memory of 2300	4688	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	83
PID 4688 wrote to memory of 2300	4688	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	83
PID 4688 wrote to memory of 2300	4688	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	83
PID 4688 wrote to memory of 2300	4688	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	83
PID 4688 wrote to memory of 2300	4688	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	83
PID 4688 wrote to memory of 2300	4688	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	83
PID 2300 wrote to memory of 2600	2300	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	84
PID 2300 wrote to memory of 2600	2300	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	84
PID 2300 wrote to memory of 2600	2300	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	84
PID 2600 wrote to memory of 3968	2600	cmd.exe	88
PID 2600 wrote to memory of 3968	2600	cmd.exe	88
PID 2600 wrote to memory of 3968	2600	cmd.exe	88
PID 2300 wrote to memory of 3748	2300	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	89
PID 2300 wrote to memory of 3748	2300	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	89
PID 2300 wrote to memory of 3748	2300	9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe	89
PID 3748 wrote to memory of 1124	3748	csrsll.exe	97
PID 3748 wrote to memory of 1124	3748	csrsll.exe	97
PID 3748 wrote to memory of 1124	3748	csrsll.exe	97
PID 3748 wrote to memory of 1124	3748	csrsll.exe	97
PID 3748 wrote to memory of 1124	3748	csrsll.exe	97
PID 3748 wrote to memory of 1124	3748	csrsll.exe	97
PID 3748 wrote to memory of 1124	3748	csrsll.exe	97
PID 3748 wrote to memory of 1124	3748	csrsll.exe	97
PID 3748 wrote to memory of 1048	3748	csrsll.exe	98
PID 3748 wrote to memory of 1048	3748	csrsll.exe	98
PID 3748 wrote to memory of 1048	3748	csrsll.exe	98
PID 3748 wrote to memory of 1048	3748	csrsll.exe	98
PID 3748 wrote to memory of 1048	3748	csrsll.exe	98
PID 3748 wrote to memory of 1048	3748	csrsll.exe	98
PID 3748 wrote to memory of 1048	3748	csrsll.exe	98
PID 3748 wrote to memory of 1048	3748	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe
"C:\Users\Admin\AppData\Local\Temp\9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4688
- C:\Users\Admin\AppData\Local\Temp\9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe
  "C:\Users\Admin\AppData\Local\Temp\9509e737434e798533d7224a2ac965a87bcf6361de813f3e3ad8ce32e4f0365aN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PFBXW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2600
  - - 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:3968
- - 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:3748
  - - 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:1124
  - - 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:1048

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
18cf8902f0bf4f0cbd7bcff53f2438ba

SHA1
1a38dc28013023271013fc7de74922ab7d6d15ad

SHA256
d81d7e56cd46cd08daf821710f235223f6ac23c2a1000c9c6b4787f04db36374

SHA512
dcfe1ad99a11d1b56caa39409fcd50037c9bdbfa2980b78aab431963f3a52538c5c8877e6e587737d18f479a59acadae4d5a5d4f4d063b8e88d34049bc3d7e1f

Download Submit
memory/1048-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1048-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1048-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1048-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1048-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1048-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1124-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2300-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2300-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2300-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2300-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2300-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3748-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3748-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3748-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4688-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4688-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4688-3-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/4688-4-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/4688-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4688-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads