modiloader | f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161f

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-09-2024 10:20

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General

Target

f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe
Size

90KB
MD5

c1b9606a344357a582942c34b08fde20
SHA1

a83b4cf7eea44767fe2d96158b390c127028fd78
SHA256

f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161f
SHA512

a6c3aa8a18dc6458cbc1714f563a7d4c03419f6d7a1f5d8d9b651787bdce94b1542cc50a72a64d122a18c552b9fbb2d54c67338d4a9f7384bfb284d503b7162f
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDB: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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/2760-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2760-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2760-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2760-63-0x0000000000400000-0x0000000000414000-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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe

Executes dropped EXE 3 IoCs

pid	Process
64	csrsll.exe
1904	csrsll.exe
2760	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1916-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1916-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1240-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1240-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1916-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1240-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023436-29.dat	upx
behavioral2/memory/64-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1240-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/64-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/64-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2760-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2760-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2760-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2760-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2760-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/64-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1240-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1904-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2760-63-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-656926755-4116854191-210765258-1000\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 1916 set thread context of 1240	1916	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	88
PID 64 set thread context of 1904	64	csrsll.exe	97
PID 64 set thread context of 2760	64	csrsll.exe	98

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	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe
Token: SeDebugPrivilege	1904	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1916	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe
1240	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe
64	csrsll.exe
1904	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 1240	1916	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	88
PID 1916 wrote to memory of 1240	1916	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	88
PID 1916 wrote to memory of 1240	1916	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	88
PID 1916 wrote to memory of 1240	1916	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	88
PID 1916 wrote to memory of 1240	1916	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	88
PID 1916 wrote to memory of 1240	1916	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	88
PID 1916 wrote to memory of 1240	1916	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	88
PID 1916 wrote to memory of 1240	1916	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	88
PID 1240 wrote to memory of 1936	1240	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	90
PID 1240 wrote to memory of 1936	1240	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	90
PID 1240 wrote to memory of 1936	1240	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	90
PID 1936 wrote to memory of 808	1936	cmd.exe	93
PID 1936 wrote to memory of 808	1936	cmd.exe	93
PID 1936 wrote to memory of 808	1936	cmd.exe	93
PID 1240 wrote to memory of 64	1240	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	94
PID 1240 wrote to memory of 64	1240	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	94
PID 1240 wrote to memory of 64	1240	f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe	94
PID 64 wrote to memory of 1904	64	csrsll.exe	97
PID 64 wrote to memory of 1904	64	csrsll.exe	97
PID 64 wrote to memory of 1904	64	csrsll.exe	97
PID 64 wrote to memory of 1904	64	csrsll.exe	97
PID 64 wrote to memory of 1904	64	csrsll.exe	97
PID 64 wrote to memory of 1904	64	csrsll.exe	97
PID 64 wrote to memory of 1904	64	csrsll.exe	97
PID 64 wrote to memory of 1904	64	csrsll.exe	97
PID 64 wrote to memory of 2760	64	csrsll.exe	98
PID 64 wrote to memory of 2760	64	csrsll.exe	98
PID 64 wrote to memory of 2760	64	csrsll.exe	98
PID 64 wrote to memory of 2760	64	csrsll.exe	98
PID 64 wrote to memory of 2760	64	csrsll.exe	98
PID 64 wrote to memory of 2760	64	csrsll.exe	98
PID 64 wrote to memory of 2760	64	csrsll.exe	98
PID 64 wrote to memory of 2760	64	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe
"C:\Users\Admin\AppData\Local\Temp\f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Users\Admin\AppData\Local\Temp\f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe
  "C:\Users\Admin\AppData\Local\Temp\f7026ba301130a739cabdc7801a2e9f529535e53c91c35950d0988530b32161fN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1240
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RVHIF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1936
  - - 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:808
- - 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:64
  - - 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:1904
  - - 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:2760

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\RVHIF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
b3180ba205626f8845682a15ad5dcace

SHA1
9fe2d2ef2f49111a05d76b42c49239f047955a08

SHA256
2ed1b8ef8ce3ab0cf01729ccc62971019fc510a98b52cfb0ffbaacb416fe618a

SHA512
326d42b09d2388e3cf095dc88195a60f3b92bb5698824916a3fb1e3600e1d3eef0c228b914968c843bb2e19c1fd011bfa260649105197968c8555f05d28755d5

Download Submit
memory/64-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/64-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/64-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/64-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1240-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1240-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1240-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1240-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1240-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1240-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1904-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1916-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/1916-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1916-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1916-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/1916-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/1916-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2760-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2760-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2760-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2760-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2760-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2760-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads