modiloader | 8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3

Analysis

max time kernel
149s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 23:49

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General

Target

8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
Size

90KB
MD5

39e9b585f80b0214d26d7b39e8ce4936
SHA1

d1adad5524e8c8956563a13c6defdad537a9040d
SHA256

8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3
SHA512

4c22ccda6261245f6e3379ac9ab50942c627e8ab1d026322593d6763428167beeacda1192106649a2b5f09d83515e546f2d86f98f8caffcb67e90bd236f8a0b3
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 family
modiloader

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/1712-259-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
3056	csrsll.exe
1904	csrsll.exe
1712	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2712	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
2712	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
2712	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
2712	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
2712	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.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-1-5-21-2039016743-699959520-214465309-1000\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 2520 set thread context of 2712	2520	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	30
PID 3056 set thread context of 1904	3056	csrsll.exe	36
PID 3056 set thread context of 1712	3056	csrsll.exe	37

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2520-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2520-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2520-90-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2520-85-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2712-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2520-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2712-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2712-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2712-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2712-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2712-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2520-110-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x00080000000120fe-133.dat	upx
behavioral1/memory/2712-135-0x00000000031B0000-0x0000000003203000-memory.dmp	upx
behavioral1/memory/2712-154-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2712-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3056-251-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1712-247-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/3056-215-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1904-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1712-259-0x0000000000400000-0x0000000000414000-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	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	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.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
2520	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
2712	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
3056	csrsll.exe
1904	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2712	2520	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	30
PID 2520 wrote to memory of 2712	2520	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	30
PID 2520 wrote to memory of 2712	2520	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	30
PID 2520 wrote to memory of 2712	2520	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	30
PID 2520 wrote to memory of 2712	2520	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	30
PID 2520 wrote to memory of 2712	2520	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	30
PID 2520 wrote to memory of 2712	2520	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	30
PID 2520 wrote to memory of 2712	2520	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	30
PID 2712 wrote to memory of 1144	2712	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	31
PID 2712 wrote to memory of 1144	2712	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	31
PID 2712 wrote to memory of 1144	2712	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	31
PID 2712 wrote to memory of 1144	2712	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	31
PID 1144 wrote to memory of 2532	1144	cmd.exe	33
PID 1144 wrote to memory of 2532	1144	cmd.exe	33
PID 1144 wrote to memory of 2532	1144	cmd.exe	33
PID 1144 wrote to memory of 2532	1144	cmd.exe	33
PID 2712 wrote to memory of 3056	2712	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	34
PID 2712 wrote to memory of 3056	2712	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	34
PID 2712 wrote to memory of 3056	2712	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	34
PID 2712 wrote to memory of 3056	2712	8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe	34
PID 3056 wrote to memory of 1904	3056	csrsll.exe	36
PID 3056 wrote to memory of 1904	3056	csrsll.exe	36
PID 3056 wrote to memory of 1904	3056	csrsll.exe	36
PID 3056 wrote to memory of 1904	3056	csrsll.exe	36
PID 3056 wrote to memory of 1904	3056	csrsll.exe	36
PID 3056 wrote to memory of 1904	3056	csrsll.exe	36
PID 3056 wrote to memory of 1904	3056	csrsll.exe	36
PID 3056 wrote to memory of 1904	3056	csrsll.exe	36
PID 3056 wrote to memory of 1712	3056	csrsll.exe	37
PID 3056 wrote to memory of 1712	3056	csrsll.exe	37
PID 3056 wrote to memory of 1712	3056	csrsll.exe	37
PID 3056 wrote to memory of 1712	3056	csrsll.exe	37
PID 3056 wrote to memory of 1712	3056	csrsll.exe	37
PID 3056 wrote to memory of 1712	3056	csrsll.exe	37
PID 3056 wrote to memory of 1712	3056	csrsll.exe	37
PID 3056 wrote to memory of 1712	3056	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
"C:\Users\Admin\AppData\Local\Temp\8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Users\Admin\AppData\Local\Temp\8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe
  "C:\Users\Admin\AppData\Local\Temp\8c428529b9bdae53ae942f4126991d61a9461a8bbf697c2042b3ed27667569a3.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2712
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\FGDME.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1144
  - - 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:2532
- - 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:3056
  - - 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:1712

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\FGDME.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
2603cd4a3ea1128a18df3714a4779a9c

SHA1
745139fd394ea141278c8a59958fa1dba573b9f0

SHA256
13d23b77152a8eaf0ce41431dfd97358d87ebf269aa22a2698d90fd230ff226c

SHA512
9bf51e4977643cac69fa5c21577a206ba8b6619116079942ae6c4ab7ef2c6d49ffb636d232f63b07538ebb1e49786b4ea7a1e8b8982af54c274c2c212b9a1bc1

Download Submit
memory/1712-259-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1712-247-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1904-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2520-61-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2520-29-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2520-90-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2520-85-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2520-71-0x0000000000660000-0x0000000000661000-memory.dmp

Filesize
4KB

Download
memory/2520-110-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2520-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2520-79-0x0000000000680000-0x0000000000682000-memory.dmp

Filesize
8KB

Download
memory/2520-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2520-105-0x0000000002430000-0x0000000002483000-memory.dmp

Filesize
332KB

Download
memory/2520-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2520-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2520-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2520-15-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2520-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2520-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2712-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2712-154-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2712-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2712-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2712-135-0x00000000031B0000-0x0000000003203000-memory.dmp

Filesize
332KB

Download
memory/2712-150-0x00000000031B0000-0x0000000003203000-memory.dmp

Filesize
332KB

Download
memory/2712-149-0x00000000031B0000-0x0000000003203000-memory.dmp

Filesize
332KB

Download
memory/2712-148-0x00000000031B0000-0x0000000003203000-memory.dmp

Filesize
332KB

Download
memory/2712-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2712-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2712-199-0x00000000031B0000-0x0000000003203000-memory.dmp

Filesize
332KB

Download
memory/2712-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2712-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2712-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3056-215-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3056-178-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/3056-167-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/3056-251-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3056-157-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads