modiloader | b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6

Analysis

max time kernel
120s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 16:29

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General

Target

b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe
Size

90KB
MD5

845b73f97078eddbdc8e3a73d0def301
SHA1

003de6eb521f005c59323de33372ae0f695f8ca2
SHA256

b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6
SHA512

96ebebfd8d6dba585174b87994f5ab042cdb5d00a61a1f3f2b9f4f112fde3b079253c7be90bb69639c0e08962bfe972c5d3998c8a76923b164cd66de65efc241
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD9:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE33

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 1 IoCs

resource	yara_rule
behavioral1/memory/2920-263-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1932	csrsll.exe
3012	csrsll.exe
2920	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2348	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe
2348	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe
2348	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe
2348	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe
2348	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.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-1-5-21-3533259084-2542256011-65585152-1000\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 1324 set thread context of 2348	1324	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	30
PID 1932 set thread context of 3012	1932	csrsll.exe	36
PID 1932 set thread context of 2920	1932	csrsll.exe	37

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1324-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1324-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1324-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2348-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2348-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2348-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2348-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2348-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2348-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1324-102-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x0009000000019234-143.dat	upx
behavioral1/memory/2348-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1932-227-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2348-226-0x0000000002770000-0x00000000027C3000-memory.dmp	upx
behavioral1/memory/2348-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1932-253-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2920-249-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/3012-260-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2920-263-0x0000000000400000-0x0000000000414000-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	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.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	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1324	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe
2348	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe
1932	csrsll.exe
3012	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1324 wrote to memory of 2348	1324	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	30
PID 1324 wrote to memory of 2348	1324	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	30
PID 1324 wrote to memory of 2348	1324	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	30
PID 1324 wrote to memory of 2348	1324	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	30
PID 1324 wrote to memory of 2348	1324	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	30
PID 1324 wrote to memory of 2348	1324	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	30
PID 1324 wrote to memory of 2348	1324	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	30
PID 1324 wrote to memory of 2348	1324	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	30
PID 2348 wrote to memory of 2900	2348	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	32
PID 2348 wrote to memory of 2900	2348	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	32
PID 2348 wrote to memory of 2900	2348	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	32
PID 2348 wrote to memory of 2900	2348	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	32
PID 2900 wrote to memory of 1244	2900	cmd.exe	34
PID 2900 wrote to memory of 1244	2900	cmd.exe	34
PID 2900 wrote to memory of 1244	2900	cmd.exe	34
PID 2900 wrote to memory of 1244	2900	cmd.exe	34
PID 2348 wrote to memory of 1932	2348	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	35
PID 2348 wrote to memory of 1932	2348	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	35
PID 2348 wrote to memory of 1932	2348	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	35
PID 2348 wrote to memory of 1932	2348	b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe	35
PID 1932 wrote to memory of 3012	1932	csrsll.exe	36
PID 1932 wrote to memory of 3012	1932	csrsll.exe	36
PID 1932 wrote to memory of 3012	1932	csrsll.exe	36
PID 1932 wrote to memory of 3012	1932	csrsll.exe	36
PID 1932 wrote to memory of 3012	1932	csrsll.exe	36
PID 1932 wrote to memory of 3012	1932	csrsll.exe	36
PID 1932 wrote to memory of 3012	1932	csrsll.exe	36
PID 1932 wrote to memory of 3012	1932	csrsll.exe	36
PID 1932 wrote to memory of 2920	1932	csrsll.exe	37
PID 1932 wrote to memory of 2920	1932	csrsll.exe	37
PID 1932 wrote to memory of 2920	1932	csrsll.exe	37
PID 1932 wrote to memory of 2920	1932	csrsll.exe	37
PID 1932 wrote to memory of 2920	1932	csrsll.exe	37
PID 1932 wrote to memory of 2920	1932	csrsll.exe	37
PID 1932 wrote to memory of 2920	1932	csrsll.exe	37
PID 1932 wrote to memory of 2920	1932	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe
"C:\Users\Admin\AppData\Local\Temp\b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1324
- C:\Users\Admin\AppData\Local\Temp\b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe
  "C:\Users\Admin\AppData\Local\Temp\b8a15fb147e3b48f2f998009ef7a21c7382e28eeb45e5da04952b3fed3a519f6.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2348
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\DQQCK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2900
  - - 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:1244
- - 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:1932
  - - 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:3012
  - - 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:2920

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

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\DQQCK.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
dc0e1361e7f7ce5e60371f9d1848ba13

SHA1
be9eb6323ca4488ba38f0918229e0ae5318c5ffe

SHA256
03b25d1a6151350e83fb1f67582cf249572d319e4226e9d67ee9c6deb9739a1b

SHA512
0728331b95bcaac90f8374d63e9050ff3339e39bd04c41dd708384e4c4047cce3fddf47cc5c11313daeab8446600ba3428d4786f5719c84a18765aea6f491c44

Download Submit
memory/1324-15-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/1324-29-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/1324-79-0x0000000000470000-0x0000000000472000-memory.dmp

Filesize
8KB

Download
memory/1324-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1324-41-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/1324-71-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1324-61-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1324-19-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1324-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1324-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1324-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1324-96-0x0000000001E70000-0x0000000001EC3000-memory.dmp

Filesize
332KB

Download
memory/1324-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1324-102-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1932-165-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1932-176-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1932-253-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1932-155-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1932-227-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2348-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2348-226-0x0000000002770000-0x00000000027C3000-memory.dmp

Filesize
332KB

Download
memory/2348-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2348-147-0x0000000002770000-0x00000000027C3000-memory.dmp

Filesize
332KB

Download
memory/2348-148-0x0000000002770000-0x00000000027C3000-memory.dmp

Filesize
332KB

Download
memory/2348-146-0x0000000002770000-0x00000000027C3000-memory.dmp

Filesize
332KB

Download
memory/2348-145-0x0000000002770000-0x00000000027C3000-memory.dmp

Filesize
332KB

Download
memory/2348-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2348-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2348-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2348-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2348-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2348-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2348-235-0x0000000002770000-0x00000000027C3000-memory.dmp

Filesize
332KB

Download
memory/2348-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2348-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2348-234-0x0000000002770000-0x00000000027C3000-memory.dmp

Filesize
332KB

Download
memory/2348-248-0x0000000002770000-0x00000000027C3000-memory.dmp

Filesize
332KB

Download
memory/2348-247-0x0000000002770000-0x00000000027C3000-memory.dmp

Filesize
332KB

Download
memory/2920-249-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2920-263-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3012-260-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads