modiloader | fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767

Analysis

max time kernel
119s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-12-2024 06:31

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General

Target

fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe
Size

90KB
MD5

1124142fa2cec1eeaef51e00ae1424ea
SHA1

eb579f4b1b1dfcd416bf22407be08ca4506de5c8
SHA256

fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767
SHA512

1a1f42946874de3adcf29fa7c117e9f89671c73606d23ca2941825128850f2b58a8673dbf175fd929fe650f7ba0d10d316e70a50b704f30b1b26e7d6a3972280
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDE:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE32

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/2880-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2880-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2880-60-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2880-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe

Executes dropped EXE 3 IoCs

pid	Process
2684	csrsll.exe
2940	csrsll.exe
2880	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-1-5-21-3442511616-637977696-3186306149-1000\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 5096 set thread context of 1500	5096	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	86
PID 2684 set thread context of 2940	2684	csrsll.exe	95
PID 2684 set thread context of 2880	2684	csrsll.exe	96

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5096-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5096-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1500-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1500-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5096-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1500-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b83-29.dat	upx
behavioral2/memory/1500-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2684-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2880-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1500-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2684-54-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2880-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2880-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2880-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2880-60-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2940-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2880-62-0x0000000000400000-0x0000000000414000-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	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.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	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe
Token: SeDebugPrivilege	2940	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5096	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe
1500	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe
2684	csrsll.exe
2940	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5096 wrote to memory of 1500	5096	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	86
PID 5096 wrote to memory of 1500	5096	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	86
PID 5096 wrote to memory of 1500	5096	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	86
PID 5096 wrote to memory of 1500	5096	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	86
PID 5096 wrote to memory of 1500	5096	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	86
PID 5096 wrote to memory of 1500	5096	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	86
PID 5096 wrote to memory of 1500	5096	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	86
PID 5096 wrote to memory of 1500	5096	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	86
PID 1500 wrote to memory of 3624	1500	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	88
PID 1500 wrote to memory of 3624	1500	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	88
PID 1500 wrote to memory of 3624	1500	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	88
PID 3624 wrote to memory of 4156	3624	cmd.exe	91
PID 3624 wrote to memory of 4156	3624	cmd.exe	91
PID 3624 wrote to memory of 4156	3624	cmd.exe	91
PID 1500 wrote to memory of 2684	1500	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	92
PID 1500 wrote to memory of 2684	1500	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	92
PID 1500 wrote to memory of 2684	1500	fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe	92
PID 2684 wrote to memory of 2940	2684	csrsll.exe	95
PID 2684 wrote to memory of 2940	2684	csrsll.exe	95
PID 2684 wrote to memory of 2940	2684	csrsll.exe	95
PID 2684 wrote to memory of 2940	2684	csrsll.exe	95
PID 2684 wrote to memory of 2940	2684	csrsll.exe	95
PID 2684 wrote to memory of 2940	2684	csrsll.exe	95
PID 2684 wrote to memory of 2940	2684	csrsll.exe	95
PID 2684 wrote to memory of 2940	2684	csrsll.exe	95
PID 2684 wrote to memory of 2880	2684	csrsll.exe	96
PID 2684 wrote to memory of 2880	2684	csrsll.exe	96
PID 2684 wrote to memory of 2880	2684	csrsll.exe	96
PID 2684 wrote to memory of 2880	2684	csrsll.exe	96
PID 2684 wrote to memory of 2880	2684	csrsll.exe	96
PID 2684 wrote to memory of 2880	2684	csrsll.exe	96
PID 2684 wrote to memory of 2880	2684	csrsll.exe	96
PID 2684 wrote to memory of 2880	2684	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe
"C:\Users\Admin\AppData\Local\Temp\fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5096
- C:\Users\Admin\AppData\Local\Temp\fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe
  "C:\Users\Admin\AppData\Local\Temp\fbe2ec1a8289a917c6a839a4f13f203e9a0bb1fba071ec2987b4a051f6c22767.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1500
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YMYKI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3624
  - - 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:4156
- - 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:2684
  - - 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:2940
  - - 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:2880

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\YMYKI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
4ec55ce04ef60b3393cf3a47ce1e866a

SHA1
532e4c59e1b060a0240aed189da24ab22d141fc8

SHA256
48aba1ac33229afaca4670734e68988b41706f9f86db08bbff00b4a4d8b3fef5

SHA512
73d55c614599f5a7aa649b24084414b6a15ba8566e88412e4f50955d9a7478e9d3f4d79a6b51582ade7105e00542bf9f7473ddfa86eb2701b50cbffc55f80c10

Download Submit
memory/1500-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1500-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1500-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1500-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1500-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2684-54-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2684-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2880-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2880-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2880-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2880-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2880-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2880-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2940-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5096-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5096-6-0x0000000002930000-0x0000000002932000-memory.dmp

Filesize
8KB

Download
memory/5096-5-0x0000000002940000-0x0000000002942000-memory.dmp

Filesize
8KB

Download
memory/5096-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5096-3-0x0000000002910000-0x0000000002912000-memory.dmp

Filesize
8KB

Download
memory/5096-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads