modiloader | d57d2c7e0376d353d7a5531c3396b34e67b07fc6e51c6490de95cfd9775cc514

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
04/09/2024, 21:24

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General

Target

032f1efbe3feb151425d80b7f93b5c30N.exe
Size

90KB
MD5

032f1efbe3feb151425d80b7f93b5c30
SHA1

59baee0d18cc16bbcb7ef7d69ade87112f7db264
SHA256

d57d2c7e0376d353d7a5531c3396b34e67b07fc6e51c6490de95cfd9775cc514
SHA512

39aaf6f098eb5f2b1eafb040b7005b240cbd5926b4cd9a3095fa1d1724bb4646a00f2e78d91507f09353b05de018a518c5055e59cb6bf3cf85a2d1093fe9aebe
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/4424-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4424-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4424-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4424-63-0x0000000000400000-0x0000000000414000-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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	032f1efbe3feb151425d80b7f93b5c30N.exe

Executes dropped EXE 3 IoCs

pid	Process
3088	csrsll.exe
868	csrsll.exe
4424	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5076-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5076-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2824-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2824-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5076-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2824-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b00000002339e-29.dat	upx
behavioral2/memory/3088-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2824-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3088-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3088-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4424-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4424-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4424-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4424-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3088-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4424-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2824-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/868-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4424-63-0x0000000000400000-0x0000000000414000-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-1-5-21-355097885-2402257403-2971294179-1000\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 5076 set thread context of 2824	5076	032f1efbe3feb151425d80b7f93b5c30N.exe	93
PID 3088 set thread context of 868	3088	csrsll.exe	101
PID 3088 set thread context of 4424	3088	csrsll.exe	102

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	032f1efbe3feb151425d80b7f93b5c30N.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	032f1efbe3feb151425d80b7f93b5c30N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe
Token: SeDebugPrivilege	868	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5076	032f1efbe3feb151425d80b7f93b5c30N.exe
2824	032f1efbe3feb151425d80b7f93b5c30N.exe
3088	csrsll.exe
868	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5076 wrote to memory of 2824	5076	032f1efbe3feb151425d80b7f93b5c30N.exe	93
PID 5076 wrote to memory of 2824	5076	032f1efbe3feb151425d80b7f93b5c30N.exe	93
PID 5076 wrote to memory of 2824	5076	032f1efbe3feb151425d80b7f93b5c30N.exe	93
PID 5076 wrote to memory of 2824	5076	032f1efbe3feb151425d80b7f93b5c30N.exe	93
PID 5076 wrote to memory of 2824	5076	032f1efbe3feb151425d80b7f93b5c30N.exe	93
PID 5076 wrote to memory of 2824	5076	032f1efbe3feb151425d80b7f93b5c30N.exe	93
PID 5076 wrote to memory of 2824	5076	032f1efbe3feb151425d80b7f93b5c30N.exe	93
PID 5076 wrote to memory of 2824	5076	032f1efbe3feb151425d80b7f93b5c30N.exe	93
PID 2824 wrote to memory of 4836	2824	032f1efbe3feb151425d80b7f93b5c30N.exe	94
PID 2824 wrote to memory of 4836	2824	032f1efbe3feb151425d80b7f93b5c30N.exe	94
PID 2824 wrote to memory of 4836	2824	032f1efbe3feb151425d80b7f93b5c30N.exe	94
PID 4836 wrote to memory of 2908	4836	cmd.exe	97
PID 4836 wrote to memory of 2908	4836	cmd.exe	97
PID 4836 wrote to memory of 2908	4836	cmd.exe	97
PID 2824 wrote to memory of 3088	2824	032f1efbe3feb151425d80b7f93b5c30N.exe	98
PID 2824 wrote to memory of 3088	2824	032f1efbe3feb151425d80b7f93b5c30N.exe	98
PID 2824 wrote to memory of 3088	2824	032f1efbe3feb151425d80b7f93b5c30N.exe	98
PID 3088 wrote to memory of 868	3088	csrsll.exe	101
PID 3088 wrote to memory of 868	3088	csrsll.exe	101
PID 3088 wrote to memory of 868	3088	csrsll.exe	101
PID 3088 wrote to memory of 868	3088	csrsll.exe	101
PID 3088 wrote to memory of 868	3088	csrsll.exe	101
PID 3088 wrote to memory of 868	3088	csrsll.exe	101
PID 3088 wrote to memory of 868	3088	csrsll.exe	101
PID 3088 wrote to memory of 868	3088	csrsll.exe	101
PID 3088 wrote to memory of 4424	3088	csrsll.exe	102
PID 3088 wrote to memory of 4424	3088	csrsll.exe	102
PID 3088 wrote to memory of 4424	3088	csrsll.exe	102
PID 3088 wrote to memory of 4424	3088	csrsll.exe	102
PID 3088 wrote to memory of 4424	3088	csrsll.exe	102
PID 3088 wrote to memory of 4424	3088	csrsll.exe	102
PID 3088 wrote to memory of 4424	3088	csrsll.exe	102
PID 3088 wrote to memory of 4424	3088	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\032f1efbe3feb151425d80b7f93b5c30N.exe
"C:\Users\Admin\AppData\Local\Temp\032f1efbe3feb151425d80b7f93b5c30N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5076
- C:\Users\Admin\AppData\Local\Temp\032f1efbe3feb151425d80b7f93b5c30N.exe
  "C:\Users\Admin\AppData\Local\Temp\032f1efbe3feb151425d80b7f93b5c30N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2824
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BPFSO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4836
  - - 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:2908
- - 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:3088
  - - 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:868
  - - 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:4424

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\BPFSO.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
d294b1020ca4c8f64d9a8f234efdd32d

SHA1
f0ba41b4858a205836f11e52414b57ebbd668fdd

SHA256
26ea164fd63b6125f0ea6cb97b68bbdabf16e029190e73ccb47c34b4e72b4c19

SHA512
00b0dc309072be213fd0026ae673a3fdb31f56a416c15402c5d22c0283e45aa6d397226b5e456e1a842dc8c8630444c946d78c575173273db054d977dfbf3240

Download Submit
memory/868-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2824-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2824-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2824-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2824-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2824-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2824-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3088-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3088-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3088-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3088-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4424-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4424-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4424-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4424-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4424-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4424-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5076-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5076-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5076-5-0x0000000002420000-0x0000000002422000-memory.dmp

Filesize
8KB

Download
memory/5076-6-0x0000000002430000-0x0000000002432000-memory.dmp

Filesize
8KB

Download
memory/5076-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5076-3-0x0000000002400000-0x0000000002402000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads