modiloader | aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c

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
28/11/2024, 17:26

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General

Target

aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe
Size

90KB
MD5

6376da5e2fd43be10edca63ed0b0cd67
SHA1

f2502dd69a9f83f5fffe502551ca5d02067faa37
SHA256

aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c
SHA512

2225df03805305bd5ede07fd83ac2262d1c7c47c8dba41ac9573dd7a3dbee64acbaa2490186873e7f564869c61097f8a1690d9b5588bec5d6c67849b22ebef84
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3U

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/2784-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2784-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2784-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2784-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe

Executes dropped EXE 3 IoCs

pid	Process
1956	csrsll.exe
4696	csrsll.exe
2784	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-1-5-21-2878641211-696417878-3864914810-1000\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 2932 set thread context of 1564	2932	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	91
PID 1956 set thread context of 4696	1956	csrsll.exe	101
PID 1956 set thread context of 2784	1956	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2932-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2932-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1564-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1564-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2932-10-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1564-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b61-28.dat	upx
behavioral2/memory/1564-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1956-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1956-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2784-43-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2784-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2784-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2784-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1956-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2784-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1564-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4696-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2784-61-0x0000000000400000-0x0000000000414000-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	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	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2932	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe
1564	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe
1956	csrsll.exe
4696	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 1564	2932	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	91
PID 2932 wrote to memory of 1564	2932	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	91
PID 2932 wrote to memory of 1564	2932	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	91
PID 2932 wrote to memory of 1564	2932	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	91
PID 2932 wrote to memory of 1564	2932	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	91
PID 2932 wrote to memory of 1564	2932	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	91
PID 2932 wrote to memory of 1564	2932	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	91
PID 2932 wrote to memory of 1564	2932	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	91
PID 1564 wrote to memory of 3644	1564	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	92
PID 1564 wrote to memory of 3644	1564	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	92
PID 1564 wrote to memory of 3644	1564	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	92
PID 3644 wrote to memory of 4784	3644	cmd.exe	96
PID 3644 wrote to memory of 4784	3644	cmd.exe	96
PID 3644 wrote to memory of 4784	3644	cmd.exe	96
PID 1564 wrote to memory of 1956	1564	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	97
PID 1564 wrote to memory of 1956	1564	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	97
PID 1564 wrote to memory of 1956	1564	aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe	97
PID 1956 wrote to memory of 4696	1956	csrsll.exe	101
PID 1956 wrote to memory of 4696	1956	csrsll.exe	101
PID 1956 wrote to memory of 4696	1956	csrsll.exe	101
PID 1956 wrote to memory of 4696	1956	csrsll.exe	101
PID 1956 wrote to memory of 4696	1956	csrsll.exe	101
PID 1956 wrote to memory of 4696	1956	csrsll.exe	101
PID 1956 wrote to memory of 4696	1956	csrsll.exe	101
PID 1956 wrote to memory of 4696	1956	csrsll.exe	101
PID 1956 wrote to memory of 2784	1956	csrsll.exe	102
PID 1956 wrote to memory of 2784	1956	csrsll.exe	102
PID 1956 wrote to memory of 2784	1956	csrsll.exe	102
PID 1956 wrote to memory of 2784	1956	csrsll.exe	102
PID 1956 wrote to memory of 2784	1956	csrsll.exe	102
PID 1956 wrote to memory of 2784	1956	csrsll.exe	102
PID 1956 wrote to memory of 2784	1956	csrsll.exe	102
PID 1956 wrote to memory of 2784	1956	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe
"C:\Users\Admin\AppData\Local\Temp\aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Users\Admin\AppData\Local\Temp\aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe
  "C:\Users\Admin\AppData\Local\Temp\aae17a96490155da1762b2d40d2798e2f97d8ef909e6087f8ecaffa3d300287c.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1564
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AVTRV.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3644
  - - 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:4784
- - 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:1956
  - - 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:4696
  - - 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:2784

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\AVTRV.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
f3062fe943ea9d5f4b0798f9255423de

SHA1
8cbf06cc37811bcb4db3f3c7276e10bd015023b3

SHA256
69265afa87dba0569a7448f957049ceb3db8822f8e7e1e93364dbc28825591b3

SHA512
ef52dff1859ddcf83e27c7cb2f3470b8207689b87a699b81e71d3a9990dac4709b6f3268d371b745fff410c3b747fcf0637dd7bd2f5da27e72a93473114d88d0

Download Submit
memory/1564-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1564-57-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1564-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1564-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1564-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1564-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1956-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1956-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1956-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2784-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2784-43-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2784-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2784-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2784-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2784-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2932-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2932-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/2932-10-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2932-5-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/2932-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2932-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4696-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads