modiloader | 8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84

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
16-09-2024 22:26

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General

Target

8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe
Size

90KB
MD5

5ecfd1424bb1f62a376b030fc1c2e460
SHA1

94804b128a8b10d7a0cd0561ac6216d30c39b40c
SHA256

8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84
SHA512

c332870dc542952ab4b60d84f96a966572ef04e5809f5eea546fb90fcbbcdae5bf1b589fc431635d2292949f2714c74e45cb13d03797f009af809aa5edb3a521
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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/2244-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2244-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2244-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2244-64-0x0000000000400000-0x0000000000414000-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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe

Executes dropped EXE 3 IoCs

pid	Process
2200	csrsll.exe
4512	csrsll.exe
2244	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1044-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1044-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1000-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1000-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1044-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1000-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00080000000234e3-29.dat	upx
behavioral2/memory/2200-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1000-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2200-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2200-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2244-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2244-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2244-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2244-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2244-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2200-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1000-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4512-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2244-64-0x0000000000400000-0x0000000000414000-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-1-5-21-1194130065-3471212556-1656947724-1000\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 1044 set thread context of 1000	1044	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	87
PID 2200 set thread context of 4512	2200	csrsll.exe	95
PID 2200 set thread context of 2244	2200	csrsll.exe	96

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	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe
Token: SeDebugPrivilege	4512	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1044	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe
1000	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe
2200	csrsll.exe
4512	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1044 wrote to memory of 1000	1044	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	87
PID 1044 wrote to memory of 1000	1044	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	87
PID 1044 wrote to memory of 1000	1044	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	87
PID 1044 wrote to memory of 1000	1044	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	87
PID 1044 wrote to memory of 1000	1044	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	87
PID 1044 wrote to memory of 1000	1044	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	87
PID 1044 wrote to memory of 1000	1044	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	87
PID 1044 wrote to memory of 1000	1044	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	87
PID 1000 wrote to memory of 4592	1000	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	90
PID 1000 wrote to memory of 4592	1000	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	90
PID 1000 wrote to memory of 4592	1000	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	90
PID 4592 wrote to memory of 4108	4592	cmd.exe	93
PID 4592 wrote to memory of 4108	4592	cmd.exe	93
PID 4592 wrote to memory of 4108	4592	cmd.exe	93
PID 1000 wrote to memory of 2200	1000	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	94
PID 1000 wrote to memory of 2200	1000	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	94
PID 1000 wrote to memory of 2200	1000	8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe	94
PID 2200 wrote to memory of 4512	2200	csrsll.exe	95
PID 2200 wrote to memory of 4512	2200	csrsll.exe	95
PID 2200 wrote to memory of 4512	2200	csrsll.exe	95
PID 2200 wrote to memory of 4512	2200	csrsll.exe	95
PID 2200 wrote to memory of 4512	2200	csrsll.exe	95
PID 2200 wrote to memory of 4512	2200	csrsll.exe	95
PID 2200 wrote to memory of 4512	2200	csrsll.exe	95
PID 2200 wrote to memory of 4512	2200	csrsll.exe	95
PID 2200 wrote to memory of 2244	2200	csrsll.exe	96
PID 2200 wrote to memory of 2244	2200	csrsll.exe	96
PID 2200 wrote to memory of 2244	2200	csrsll.exe	96
PID 2200 wrote to memory of 2244	2200	csrsll.exe	96
PID 2200 wrote to memory of 2244	2200	csrsll.exe	96
PID 2200 wrote to memory of 2244	2200	csrsll.exe	96
PID 2200 wrote to memory of 2244	2200	csrsll.exe	96
PID 2200 wrote to memory of 2244	2200	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe
"C:\Users\Admin\AppData\Local\Temp\8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Users\Admin\AppData\Local\Temp\8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe
  "C:\Users\Admin\AppData\Local\Temp\8111cd53b0d266c395e1f95b2219796ec19851db7b57710d90281909566fea84N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1000
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\TRQUH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4592
  - - 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:4108
- - 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:2200
  - - 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:4512
  - - 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:2244

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

Replay Monitor

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
70c78e4891e11c3548b6c2f529429358

SHA1
05f04bd09a93022a2e17c43cd28d1b9fbb669c5a

SHA256
2bde62c6b2f14231b15933f1cf72fa2b2e7cf21785c113f44f9fae3fc325458e

SHA512
4f08ba01eb8d5cf0febc5ebb3e6096317d86176b0fa9cd88b5c9ec9803347e02b7fea2ce22b07e64d5cc3f369d449b07ad9246e1c6f594921365fda18705fc66

Download Submit
memory/1000-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1000-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1000-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1000-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1000-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1044-6-0x0000000002210000-0x0000000002212000-memory.dmp

Filesize
8KB

Download
memory/1044-4-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/1044-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1044-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1044-3-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/1044-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2200-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2200-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2200-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2200-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2244-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2244-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2244-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2244-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2244-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2244-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads