modiloader | 38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4

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
19-09-2024 11:41

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General

Target

38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe
Size

90KB
MD5

a161535371e3c854f43657e2913c7f70
SHA1

94b7435344947a719279517e7a7e9b8a949d0f2c
SHA256

38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4
SHA512

365532ad102e95f6b25742806580c43716f0e2d4a409551ddd78565238def2d363401f4c5b3fde071bf693da1446c16b084f5f5930373f1c7a63a230066ca9d4
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/816-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/816-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/816-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/816-64-0x0000000000400000-0x0000000000414000-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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe

Executes dropped EXE 3 IoCs

pid	Process
4760	csrsll.exe
2688	csrsll.exe
816	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2484-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2484-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2680-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2680-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2680-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2484-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x00080000000234df-29.dat	upx
behavioral2/memory/4760-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2680-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4760-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4760-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/816-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/816-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/816-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/816-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4760-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/816-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2680-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2688-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/816-64-0x0000000000400000-0x0000000000414000-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-1-5-21-355097885-2402257403-2971294179-1000\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 2484 set thread context of 2680	2484	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	82
PID 4760 set thread context of 2688	4760	csrsll.exe	95
PID 4760 set thread context of 816	4760	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	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe
Token: SeDebugPrivilege	2688	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2484	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe
2680	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe
4760	csrsll.exe
2688	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 2680	2484	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	82
PID 2484 wrote to memory of 2680	2484	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	82
PID 2484 wrote to memory of 2680	2484	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	82
PID 2484 wrote to memory of 2680	2484	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	82
PID 2484 wrote to memory of 2680	2484	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	82
PID 2484 wrote to memory of 2680	2484	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	82
PID 2484 wrote to memory of 2680	2484	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	82
PID 2484 wrote to memory of 2680	2484	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	82
PID 2680 wrote to memory of 2336	2680	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	86
PID 2680 wrote to memory of 2336	2680	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	86
PID 2680 wrote to memory of 2336	2680	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	86
PID 2336 wrote to memory of 2992	2336	cmd.exe	90
PID 2336 wrote to memory of 2992	2336	cmd.exe	90
PID 2336 wrote to memory of 2992	2336	cmd.exe	90
PID 2680 wrote to memory of 4760	2680	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	91
PID 2680 wrote to memory of 4760	2680	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	91
PID 2680 wrote to memory of 4760	2680	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	91
PID 4760 wrote to memory of 2688	4760	csrsll.exe	95
PID 4760 wrote to memory of 2688	4760	csrsll.exe	95
PID 4760 wrote to memory of 2688	4760	csrsll.exe	95
PID 4760 wrote to memory of 2688	4760	csrsll.exe	95
PID 4760 wrote to memory of 2688	4760	csrsll.exe	95
PID 4760 wrote to memory of 2688	4760	csrsll.exe	95
PID 4760 wrote to memory of 2688	4760	csrsll.exe	95
PID 4760 wrote to memory of 2688	4760	csrsll.exe	95
PID 4760 wrote to memory of 816	4760	csrsll.exe	96
PID 4760 wrote to memory of 816	4760	csrsll.exe	96
PID 4760 wrote to memory of 816	4760	csrsll.exe	96
PID 4760 wrote to memory of 816	4760	csrsll.exe	96
PID 4760 wrote to memory of 816	4760	csrsll.exe	96
PID 4760 wrote to memory of 816	4760	csrsll.exe	96
PID 4760 wrote to memory of 816	4760	csrsll.exe	96
PID 4760 wrote to memory of 816	4760	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe
"C:\Users\Admin\AppData\Local\Temp\38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Users\Admin\AppData\Local\Temp\38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe
  "C:\Users\Admin\AppData\Local\Temp\38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2680
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JXXKM.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2336
  - - 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:2992
- - 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:4760
  - - 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:2688
  - - 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:816

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\JXXKM.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
1d763491ea985b02b9b822b3e275ec91

SHA1
60ab32224f62cf638dfef64ed9938a123846caef

SHA256
a3f93118760c31192e05bbeabca838ed7f846a1d56694aefd896820cdc526021

SHA512
4031925a7036ae8065f15077f3d0db25e0008a99cec00673ecc68857d2e206b3bc0bb2d24b5fa1f4f4df9dd8152eab3097b009bb5c232cab930a16d7ea644812

Download Submit
memory/816-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/816-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/816-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/816-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/816-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/816-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2484-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2484-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2484-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2484-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/2484-4-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/2484-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/2680-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2680-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2680-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2680-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2680-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2680-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4760-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4760-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4760-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4760-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads