modiloader | ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127b

Analysis

max time kernel
120s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 21:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe
Size

326KB
MD5

771458cacaf6e86143f5d490e58cbe80
SHA1

9e61794256e7c043743482ddb6d46ace611d5064
SHA256

ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127b
SHA512

3ccc56e2284befde43810360ff6dd691721270174de95dc02d8dfd6bfdd547d0f1fd678b6bde1bf40cf7c0df7f89e75875df12d2ab44b38dbd93f990bed903ab
SSDEEP

3072:h0e2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XVZ:h0sxD5cwohO+O1sVG0/pZ6iPC8M

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/4464-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4464-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4464-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4464-60-0x0000000000400000-0x0000000000414000-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	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe

Executes dropped EXE 3 IoCs

pid	Process
2692	csrsll.exe
1192	csrsll.exe
4464	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 4324 set thread context of 3668	4324	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	83
PID 2692 set thread context of 1192	2692	csrsll.exe	90
PID 2692 set thread context of 4464	2692	csrsll.exe	91

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4324-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4324-4-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3668-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3668-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3668-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4324-13-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x0009000000023c91-28.dat	upx
behavioral2/memory/3668-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2692-39-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/2692-40-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4464-43-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4464-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4464-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4464-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4464-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2692-56-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3668-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1192-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4464-60-0x0000000000400000-0x0000000000414000-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	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.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	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe
Token: SeDebugPrivilege	1192	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4324	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe
3668	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe
2692	csrsll.exe
1192	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4324 wrote to memory of 3668	4324	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	83
PID 4324 wrote to memory of 3668	4324	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	83
PID 4324 wrote to memory of 3668	4324	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	83
PID 4324 wrote to memory of 3668	4324	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	83
PID 4324 wrote to memory of 3668	4324	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	83
PID 4324 wrote to memory of 3668	4324	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	83
PID 4324 wrote to memory of 3668	4324	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	83
PID 4324 wrote to memory of 3668	4324	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	83
PID 3668 wrote to memory of 1908	3668	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	84
PID 3668 wrote to memory of 1908	3668	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	84
PID 3668 wrote to memory of 1908	3668	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	84
PID 1908 wrote to memory of 3104	1908	cmd.exe	88
PID 1908 wrote to memory of 3104	1908	cmd.exe	88
PID 1908 wrote to memory of 3104	1908	cmd.exe	88
PID 3668 wrote to memory of 2692	3668	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	89
PID 3668 wrote to memory of 2692	3668	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	89
PID 3668 wrote to memory of 2692	3668	ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe	89
PID 2692 wrote to memory of 1192	2692	csrsll.exe	90
PID 2692 wrote to memory of 1192	2692	csrsll.exe	90
PID 2692 wrote to memory of 1192	2692	csrsll.exe	90
PID 2692 wrote to memory of 1192	2692	csrsll.exe	90
PID 2692 wrote to memory of 1192	2692	csrsll.exe	90
PID 2692 wrote to memory of 1192	2692	csrsll.exe	90
PID 2692 wrote to memory of 1192	2692	csrsll.exe	90
PID 2692 wrote to memory of 1192	2692	csrsll.exe	90
PID 2692 wrote to memory of 4464	2692	csrsll.exe	91
PID 2692 wrote to memory of 4464	2692	csrsll.exe	91
PID 2692 wrote to memory of 4464	2692	csrsll.exe	91
PID 2692 wrote to memory of 4464	2692	csrsll.exe	91
PID 2692 wrote to memory of 4464	2692	csrsll.exe	91
PID 2692 wrote to memory of 4464	2692	csrsll.exe	91
PID 2692 wrote to memory of 4464	2692	csrsll.exe	91
PID 2692 wrote to memory of 4464	2692	csrsll.exe	91

C:\Users\Admin\AppData\Local\Temp\ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe
"C:\Users\Admin\AppData\Local\Temp\ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4324
- C:\Users\Admin\AppData\Local\Temp\ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe
  "C:\Users\Admin\AppData\Local\Temp\ac67c90c106c71219dc9e59297ce86ff59eb0dedf450cf3ee8e3360ee11c127bN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3668
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YKSKT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1908
  - - 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:3104
- - 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:2692
  - - 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:1192
  - - 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:4464

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

Loading Replay Monitor...

Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
08d4b06fcd5fb5b645d984069c000c03

SHA1
6ba297001670300aab5ad4dd65e991de038570e7

SHA256
29e875536b78d4c9cb521ff9dc9e7a957372f08d972e585922d0f3bcbd05c715

SHA512
f2235b855e8cc4060652d21c1d7beba30a2f7aa02c8e09e4a8e18b00745b1bc26446453ebb235484cc578fdb00fe8641fb02166cdcff323131014b7c1c190bca

Download Submit
memory/1192-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2692-56-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2692-40-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2692-39-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3668-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3668-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3668-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3668-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3668-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4324-5-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/4324-6-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/4324-4-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4324-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4324-13-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4324-3-0x00000000022C0000-0x00000000022C2000-memory.dmp

Filesize
8KB

Download
memory/4464-43-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads