modiloader | 2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 08:40

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General

Target

2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe
Size

90KB
MD5

d42d708f0e8e8a9a5dad7426503b03fb
SHA1

825aa9cc85ef116ba3afe3e86b54cd9810936c09
SHA256

2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18
SHA512

a93237df03de81476d6a15c1df545fb0be3332a4cbda9160f1d02a3654802729370afb88106241b55717d0dff3d8418a187a473a3b58a2ff0a1f1fe760ba193c
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD8:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3+

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/4100-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4100-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4100-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4100-63-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe

Executes dropped EXE 3 IoCs

pid	Process
4932	csrsll.exe
4612	csrsll.exe
4100	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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1016 set thread context of 1788	1016	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	82
PID 4932 set thread context of 4612	4932	csrsll.exe	93
PID 4932 set thread context of 4100	4932	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1016-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1016-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1788-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1788-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1016-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1788-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c9b-29.dat	upx
behavioral2/memory/1788-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4932-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4932-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4100-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4100-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4100-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4100-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4100-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4932-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1788-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4612-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4100-63-0x0000000000400000-0x0000000000414000-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	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	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe
Token: SeDebugPrivilege	4612	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1016	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe
1788	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe
4932	csrsll.exe
4612	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1016 wrote to memory of 1788	1016	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	82
PID 1016 wrote to memory of 1788	1016	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	82
PID 1016 wrote to memory of 1788	1016	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	82
PID 1016 wrote to memory of 1788	1016	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	82
PID 1016 wrote to memory of 1788	1016	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	82
PID 1016 wrote to memory of 1788	1016	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	82
PID 1016 wrote to memory of 1788	1016	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	82
PID 1016 wrote to memory of 1788	1016	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	82
PID 1788 wrote to memory of 5100	1788	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	83
PID 1788 wrote to memory of 5100	1788	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	83
PID 1788 wrote to memory of 5100	1788	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	83
PID 5100 wrote to memory of 2868	5100	cmd.exe	86
PID 5100 wrote to memory of 2868	5100	cmd.exe	86
PID 5100 wrote to memory of 2868	5100	cmd.exe	86
PID 1788 wrote to memory of 4932	1788	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	87
PID 1788 wrote to memory of 4932	1788	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	87
PID 1788 wrote to memory of 4932	1788	2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe	87
PID 4932 wrote to memory of 4612	4932	csrsll.exe	93
PID 4932 wrote to memory of 4612	4932	csrsll.exe	93
PID 4932 wrote to memory of 4612	4932	csrsll.exe	93
PID 4932 wrote to memory of 4612	4932	csrsll.exe	93
PID 4932 wrote to memory of 4612	4932	csrsll.exe	93
PID 4932 wrote to memory of 4612	4932	csrsll.exe	93
PID 4932 wrote to memory of 4612	4932	csrsll.exe	93
PID 4932 wrote to memory of 4612	4932	csrsll.exe	93
PID 4932 wrote to memory of 4100	4932	csrsll.exe	94
PID 4932 wrote to memory of 4100	4932	csrsll.exe	94
PID 4932 wrote to memory of 4100	4932	csrsll.exe	94
PID 4932 wrote to memory of 4100	4932	csrsll.exe	94
PID 4932 wrote to memory of 4100	4932	csrsll.exe	94
PID 4932 wrote to memory of 4100	4932	csrsll.exe	94
PID 4932 wrote to memory of 4100	4932	csrsll.exe	94
PID 4932 wrote to memory of 4100	4932	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe
"C:\Users\Admin\AppData\Local\Temp\2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1016
- C:\Users\Admin\AppData\Local\Temp\2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe
  "C:\Users\Admin\AppData\Local\Temp\2159e52c09a42280b7d1b75376910feddae3040b363365f542aefec0f9f25d18.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1788
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\GFTAJ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5100
  - - 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:2868
- - 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:4932
  - - 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:4612
  - - 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:4100

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\GFTAJ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
4280e9b50570eb7815674bba96494201

SHA1
7c82ae4d50987090f969371b1932aed3fc33a176

SHA256
076dc82a0244cd4bb9a8229505cbf7e55818d0e937e3bd284912e67c07a0c2ac

SHA512
3cb69aaf741c7e12ea1814d187c2eb07000db3d5d0cf9e624b0837f7346d54017ad22f6011a65e616ae445b5720069c5f95beec05d4ee0f351a2b03bebc379f1

Download Submit
memory/1016-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/1016-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1016-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1016-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1016-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/1016-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/1788-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1788-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1788-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1788-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1788-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1788-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4100-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4100-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4100-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4100-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4100-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4100-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4612-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4932-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4932-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4932-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads