modiloader | 2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 07:36

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General

Target

2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe
Size

90KB
MD5

85860db5ba23d8c1ca9fc49f96080009
SHA1

bbf7618ecd2dcd09a762d0cfe131c1ba55612a59
SHA256

2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14
SHA512

68424ed8814496b8583c8f7c1439adb6415d3e67da3df49cd345cfd5f053eb0712a162357c51ccc87b54e65d114d173916c807b5d70701e71de71d9ebe0bcd0b
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDd:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3j

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 4 IoCs

resource	yara_rule
behavioral2/memory/2012-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2012-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2012-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2012-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe

Executes dropped EXE 3 IoCs

pid	Process
2556	csrsll.exe
1912	csrsll.exe
2012	csrsll.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-1-5-21-2045521122-590294423-3465680274-1000\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 3056 set thread context of 1652	3056	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	93
PID 2556 set thread context of 1912	2556	csrsll.exe	102
PID 2556 set thread context of 2012	2556	csrsll.exe	103

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3056-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3056-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1652-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1652-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3056-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1652-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023ca9-29.dat	upx
behavioral2/memory/1652-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2556-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2556-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2012-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2012-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2012-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2012-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2012-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1652-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2556-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1912-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2012-61-0x0000000000400000-0x0000000000414000-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	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.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	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe
Token: SeDebugPrivilege	1912	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3056	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe
1652	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe
2556	csrsll.exe
1912	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 1652	3056	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	93
PID 3056 wrote to memory of 1652	3056	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	93
PID 3056 wrote to memory of 1652	3056	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	93
PID 3056 wrote to memory of 1652	3056	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	93
PID 3056 wrote to memory of 1652	3056	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	93
PID 3056 wrote to memory of 1652	3056	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	93
PID 3056 wrote to memory of 1652	3056	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	93
PID 3056 wrote to memory of 1652	3056	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	93
PID 1652 wrote to memory of 2500	1652	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	94
PID 1652 wrote to memory of 2500	1652	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	94
PID 1652 wrote to memory of 2500	1652	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	94
PID 2500 wrote to memory of 3772	2500	cmd.exe	98
PID 2500 wrote to memory of 3772	2500	cmd.exe	98
PID 2500 wrote to memory of 3772	2500	cmd.exe	98
PID 1652 wrote to memory of 2556	1652	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	100
PID 1652 wrote to memory of 2556	1652	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	100
PID 1652 wrote to memory of 2556	1652	2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe	100
PID 2556 wrote to memory of 1912	2556	csrsll.exe	102
PID 2556 wrote to memory of 1912	2556	csrsll.exe	102
PID 2556 wrote to memory of 1912	2556	csrsll.exe	102
PID 2556 wrote to memory of 1912	2556	csrsll.exe	102
PID 2556 wrote to memory of 1912	2556	csrsll.exe	102
PID 2556 wrote to memory of 1912	2556	csrsll.exe	102
PID 2556 wrote to memory of 1912	2556	csrsll.exe	102
PID 2556 wrote to memory of 1912	2556	csrsll.exe	102
PID 2556 wrote to memory of 2012	2556	csrsll.exe	103
PID 2556 wrote to memory of 2012	2556	csrsll.exe	103
PID 2556 wrote to memory of 2012	2556	csrsll.exe	103
PID 2556 wrote to memory of 2012	2556	csrsll.exe	103
PID 2556 wrote to memory of 2012	2556	csrsll.exe	103
PID 2556 wrote to memory of 2012	2556	csrsll.exe	103
PID 2556 wrote to memory of 2012	2556	csrsll.exe	103
PID 2556 wrote to memory of 2012	2556	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe
"C:\Users\Admin\AppData\Local\Temp\2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3056
- C:\Users\Admin\AppData\Local\Temp\2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe
  "C:\Users\Admin\AppData\Local\Temp\2e74e2e8b3acbda3c58b7a0f84f82706e2a9febade03309490625e55d723fe14.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1652
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YMRWC.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2500
  - - 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:3772
- - 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:2556
  - - 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:1912
  - - 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:2012

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\YMRWC.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
3aae00a17b42fccf58350c2e9feda018

SHA1
b116b90e6963fee5bf730b89c766e456c5bc9d13

SHA256
b0b41209965c440e9474e309a2a2db8ec63bac3f13947ecfc8af069292eb91aa

SHA512
bd513d73521ef43558120214de1ffc06d1f955fc30ff0b686412a984950651f8fcdc0f0eb9dd54393b436bde5b395780ae33f9cc9766df0ab33fb692640e38b1

Download Submit
memory/1652-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1652-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1652-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1652-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1652-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1912-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2012-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2012-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2012-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2012-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2012-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2012-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2556-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2556-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2556-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3056-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3056-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3056-6-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

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

Filesize
332KB

Download
memory/3056-5-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/3056-3-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads