modiloader | fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba

Analysis

max time kernel
149s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18/10/2024, 05:10

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General

Target

fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe
Size

308KB
MD5

790477d0cb5a8e5525f9808adcaaf895
SHA1

560303ff1cf4aa011e7cb9a6e87749e2d8ac7f00
SHA256

fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba
SHA512

cef4ec3fa7f0dba783a351f59a04e8a2bbe7f8f1335f17a99307ea1594836331efb479456fccf86c6ddefab577ce5885617ef125cc28870c4e4b6f713ddefeab
SSDEEP

3072:/c3sBG7mXh7m/zZM3jAbNOM6CNtDCZFL:E3sBz0Z4Mj72F

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 1 IoCs

resource	yara_rule
behavioral1/memory/9332-147850-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
72280	csrsll.exe
41080	csrsll.exe
9332	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
71960	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe
71960	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe
71960	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe
71960	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe
71960	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.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-1-5-21-312935884-697965778-3955649944-1000\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 2060 set thread context of 71960	2060	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	31
PID 72280 set thread context of 41080	72280	csrsll.exe	36
PID 72280 set thread context of 9332	72280	csrsll.exe	37

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/71960-73928-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/71960-73925-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/71960-73924-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/71960-73923-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/71960-73920-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/71960-73918-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/71960-113637-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/9332-147844-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/71960-147842-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/41080-147849-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/9332-147850-0x0000000000400000-0x0000000000414000-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	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.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	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe
Token: SeDebugPrivilege	41080	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2060	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe
71960	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe
72280	csrsll.exe
41080	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2060 wrote to memory of 71960	2060	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	31
PID 2060 wrote to memory of 71960	2060	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	31
PID 2060 wrote to memory of 71960	2060	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	31
PID 2060 wrote to memory of 71960	2060	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	31
PID 2060 wrote to memory of 71960	2060	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	31
PID 2060 wrote to memory of 71960	2060	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	31
PID 2060 wrote to memory of 71960	2060	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	31
PID 2060 wrote to memory of 71960	2060	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	31
PID 71960 wrote to memory of 72204	71960	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	32
PID 71960 wrote to memory of 72204	71960	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	32
PID 71960 wrote to memory of 72204	71960	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	32
PID 71960 wrote to memory of 72204	71960	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	32
PID 72204 wrote to memory of 72256	72204	cmd.exe	34
PID 72204 wrote to memory of 72256	72204	cmd.exe	34
PID 72204 wrote to memory of 72256	72204	cmd.exe	34
PID 72204 wrote to memory of 72256	72204	cmd.exe	34
PID 71960 wrote to memory of 72280	71960	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	35
PID 71960 wrote to memory of 72280	71960	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	35
PID 71960 wrote to memory of 72280	71960	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	35
PID 71960 wrote to memory of 72280	71960	fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe	35
PID 72280 wrote to memory of 41080	72280	csrsll.exe	36
PID 72280 wrote to memory of 41080	72280	csrsll.exe	36
PID 72280 wrote to memory of 41080	72280	csrsll.exe	36
PID 72280 wrote to memory of 41080	72280	csrsll.exe	36
PID 72280 wrote to memory of 41080	72280	csrsll.exe	36
PID 72280 wrote to memory of 41080	72280	csrsll.exe	36
PID 72280 wrote to memory of 41080	72280	csrsll.exe	36
PID 72280 wrote to memory of 41080	72280	csrsll.exe	36
PID 72280 wrote to memory of 9332	72280	csrsll.exe	37
PID 72280 wrote to memory of 9332	72280	csrsll.exe	37
PID 72280 wrote to memory of 9332	72280	csrsll.exe	37
PID 72280 wrote to memory of 9332	72280	csrsll.exe	37
PID 72280 wrote to memory of 9332	72280	csrsll.exe	37
PID 72280 wrote to memory of 9332	72280	csrsll.exe	37
PID 72280 wrote to memory of 9332	72280	csrsll.exe	37
PID 72280 wrote to memory of 9332	72280	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe
"C:\Users\Admin\AppData\Local\Temp\fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Users\Admin\AppData\Local\Temp\fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe
  "C:\Users\Admin\AppData\Local\Temp\fdb5597d5b9b5cf00f34f189bb681eb4d310443fa2278ddc9b523770f966acba.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:71960
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\RDBFA.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:72204
  - - 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:72256
- - 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:72280
  - - 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:41080
  - - 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:9332

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RDBFA.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
308KB

MD5
5bcc9cc435e38c6098e86354d9120b5d

SHA1
76e57a8c06e39db36eb800750b46854df0bdd246

SHA256
265ab89e668a6fc412e07f4c0ccbb222aef3dc410c2cffbae9d754acba4f1eab

SHA512
4443860a60bcf25c71f730c14c3399873adb7bb77eec092c05bbc9cf0be36d5b8c6de12a984df772bd2867dcc62e1479ac94fc43c0093c892252f0dc689fb44a

Download Submit
memory/2060-57631-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-57610-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-57624-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-57622-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-57619-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-57617-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-57615-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-57611-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-57607-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2060-57605-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-57604-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-57603-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-57602-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-57628-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2060-57616-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2060-57606-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/9332-147844-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/9332-147850-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/41080-147849-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/71960-73922-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/71960-73920-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/71960-73928-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/71960-73918-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/71960-73925-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/71960-113637-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/71960-73923-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/71960-147842-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/71960-73916-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/71960-73924-0x0000000000400000-0x000000000040B000-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