modiloader | 4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-11-2024 21:52

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General

Target

4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe
Size

90KB
MD5

a501c9a8baa490c5f37e64a2b11e460b
SHA1

a3877e97d036a7040734a1c109d6e5585cbdba55
SHA256

4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8
SHA512

56bd5146f113a7dfe5e441c64e2efb79faa4f5caa7e8b7851f2281aa75d11a31b906584c6433ccc7e14a5095bef9643b8157355207607dcd2dde3179d165ed37
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

resource	yara_rule
behavioral2/memory/756-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/756-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/756-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/756-64-0x0000000000400000-0x0000000000414000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe

Executes dropped EXE 3 IoCs

pid	Process
4356	csrsll.exe
2604	csrsll.exe
756	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 3612 set thread context of 4416	3612	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	92
PID 4356 set thread context of 2604	4356	csrsll.exe	100
PID 4356 set thread context of 756	4356	csrsll.exe	101

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3612-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3612-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4416-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4416-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3612-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4416-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c9b-29.dat	upx
behavioral2/memory/4356-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4416-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4356-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4356-44-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/756-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/756-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/756-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/756-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4356-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4416-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/756-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2604-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/756-64-0x0000000000400000-0x0000000000414000-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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe
Token: SeDebugPrivilege	2604	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3612	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe
4416	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe
4356	csrsll.exe
2604	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3612 wrote to memory of 4416	3612	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	92
PID 3612 wrote to memory of 4416	3612	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	92
PID 3612 wrote to memory of 4416	3612	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	92
PID 3612 wrote to memory of 4416	3612	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	92
PID 3612 wrote to memory of 4416	3612	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	92
PID 3612 wrote to memory of 4416	3612	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	92
PID 3612 wrote to memory of 4416	3612	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	92
PID 3612 wrote to memory of 4416	3612	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	92
PID 4416 wrote to memory of 1784	4416	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	93
PID 4416 wrote to memory of 1784	4416	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	93
PID 4416 wrote to memory of 1784	4416	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	93
PID 1784 wrote to memory of 4460	1784	cmd.exe	96
PID 1784 wrote to memory of 4460	1784	cmd.exe	96
PID 1784 wrote to memory of 4460	1784	cmd.exe	96
PID 4416 wrote to memory of 4356	4416	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	97
PID 4416 wrote to memory of 4356	4416	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	97
PID 4416 wrote to memory of 4356	4416	4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe	97
PID 4356 wrote to memory of 2604	4356	csrsll.exe	100
PID 4356 wrote to memory of 2604	4356	csrsll.exe	100
PID 4356 wrote to memory of 2604	4356	csrsll.exe	100
PID 4356 wrote to memory of 2604	4356	csrsll.exe	100
PID 4356 wrote to memory of 2604	4356	csrsll.exe	100
PID 4356 wrote to memory of 2604	4356	csrsll.exe	100
PID 4356 wrote to memory of 2604	4356	csrsll.exe	100
PID 4356 wrote to memory of 2604	4356	csrsll.exe	100
PID 4356 wrote to memory of 756	4356	csrsll.exe	101
PID 4356 wrote to memory of 756	4356	csrsll.exe	101
PID 4356 wrote to memory of 756	4356	csrsll.exe	101
PID 4356 wrote to memory of 756	4356	csrsll.exe	101
PID 4356 wrote to memory of 756	4356	csrsll.exe	101
PID 4356 wrote to memory of 756	4356	csrsll.exe	101
PID 4356 wrote to memory of 756	4356	csrsll.exe	101
PID 4356 wrote to memory of 756	4356	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe
"C:\Users\Admin\AppData\Local\Temp\4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3612
- C:\Users\Admin\AppData\Local\Temp\4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe
  "C:\Users\Admin\AppData\Local\Temp\4302853138aae97e7b29bb7f73f01b3d78f954bc0ddcf8e0f36fe2578a9b57f8.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4416
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\QPBKB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1784
  - - 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:4460
- - 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:4356
  - - 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:2604
  - - 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:756

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\QPBKB.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
74741ec1af465dca7cccbe1f10b32b97

SHA1
8cb5451d7e3954416a09e721c7fb1f136dcb92f1

SHA256
73a83a56702e912bd3462c767ce2f169749b59ae1f1de35eb672fb69b1c9edf0

SHA512
cbc279f20ddebfdf7c47fdd1652fa134a52d65f7f95305c5969b2c8f1d2ba1cd853a8718ca942ca70ebceb12a8c0b0b9680a208b77add05d98a7250e18320a0a

Download Submit
memory/756-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/756-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/756-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/756-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/756-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/756-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2604-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3612-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3612-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3612-6-0x0000000002200000-0x0000000002202000-memory.dmp

Filesize
8KB

Download
memory/3612-5-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/3612-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3612-3-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/4356-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4356-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4356-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4356-44-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4416-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4416-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4416-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4416-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4416-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4416-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads