modiloader | 3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11-09-2024 20:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe
Size

326KB
MD5

4cd0cf89424e09f5416f9c315a19d023
SHA1

8599f6d74dd774a971047b397fef830fded8ace5
SHA256

3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd
SHA512

09018df610cd536435b62e68b67ef5abba858247b859aa7139e71292fa744dcaa298f31cd510d2c0152bf1fe5af93c5b1c0e796b8571a36d274fb93987188bc3
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:csxD5cwohO+O1sVG0/pZ6iPC8

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 4 IoCs

resource	yara_rule
behavioral2/memory/1368-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1368-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1368-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1368-60-0x0000000000400000-0x0000000000414000-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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe

Executes dropped EXE 3 IoCs

pid	Process
4796	csrsll.exe
3164	csrsll.exe
1368	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1184-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1184-4-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3732-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3732-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3732-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1184-12-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x000c000000023375-28.dat	upx
behavioral2/memory/4796-35-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3732-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4796-40-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4796-41-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1368-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1368-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1368-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1368-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4796-55-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1368-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3732-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3164-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1368-60-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-656926755-4116854191-210765258-1000\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 1184 set thread context of 3732	1184	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	86
PID 4796 set thread context of 3164	4796	csrsll.exe	99
PID 4796 set thread context of 1368	4796	csrsll.exe	100

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	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe
Token: SeDebugPrivilege	3164	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1184	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe
3732	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe
4796	csrsll.exe
3164	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1184 wrote to memory of 3732	1184	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	86
PID 1184 wrote to memory of 3732	1184	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	86
PID 1184 wrote to memory of 3732	1184	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	86
PID 1184 wrote to memory of 3732	1184	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	86
PID 1184 wrote to memory of 3732	1184	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	86
PID 1184 wrote to memory of 3732	1184	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	86
PID 1184 wrote to memory of 3732	1184	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	86
PID 1184 wrote to memory of 3732	1184	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	86
PID 3732 wrote to memory of 2012	3732	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	89
PID 3732 wrote to memory of 2012	3732	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	89
PID 3732 wrote to memory of 2012	3732	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	89
PID 2012 wrote to memory of 4004	2012	cmd.exe	92
PID 2012 wrote to memory of 4004	2012	cmd.exe	92
PID 2012 wrote to memory of 4004	2012	cmd.exe	92
PID 3732 wrote to memory of 4796	3732	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	93
PID 3732 wrote to memory of 4796	3732	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	93
PID 3732 wrote to memory of 4796	3732	3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe	93
PID 4796 wrote to memory of 3164	4796	csrsll.exe	99
PID 4796 wrote to memory of 3164	4796	csrsll.exe	99
PID 4796 wrote to memory of 3164	4796	csrsll.exe	99
PID 4796 wrote to memory of 3164	4796	csrsll.exe	99
PID 4796 wrote to memory of 3164	4796	csrsll.exe	99
PID 4796 wrote to memory of 3164	4796	csrsll.exe	99
PID 4796 wrote to memory of 3164	4796	csrsll.exe	99
PID 4796 wrote to memory of 3164	4796	csrsll.exe	99
PID 4796 wrote to memory of 1368	4796	csrsll.exe	100
PID 4796 wrote to memory of 1368	4796	csrsll.exe	100
PID 4796 wrote to memory of 1368	4796	csrsll.exe	100
PID 4796 wrote to memory of 1368	4796	csrsll.exe	100
PID 4796 wrote to memory of 1368	4796	csrsll.exe	100
PID 4796 wrote to memory of 1368	4796	csrsll.exe	100
PID 4796 wrote to memory of 1368	4796	csrsll.exe	100
PID 4796 wrote to memory of 1368	4796	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe
"C:\Users\Admin\AppData\Local\Temp\3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Users\Admin\AppData\Local\Temp\3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe
  "C:\Users\Admin\AppData\Local\Temp\3be1c7eab13681def88c2e61b2f9f58f43551a3aacee25a011a2c2d685dc16dd.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3732
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KOTAB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2012
  - - 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:4004
- - 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:4796
  - - 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:3164
  - - 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:1368

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\KOTAB.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
a617ea80e0f87ed321e58ae6653f4bd5

SHA1
dc513af45eb7c51c9cbcf1a7141dfe2ce55f3f73

SHA256
600866a27f81ffb1e451b7808bb77018f2cdf783d493bb09ff481697bdcb01a3

SHA512
1f5fa631333d334fd2da50c1cad92088abacea02613fcf1f3523f6348184e73ecdb4fb32be958a04e390be953fb3b6be60450855a6b6eca9064239c3e55b5420

Download Submit
memory/1184-5-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/1184-4-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1184-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1184-12-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1184-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/1184-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/1368-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1368-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1368-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1368-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1368-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1368-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3164-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3732-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3732-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3732-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3732-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3732-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4796-41-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4796-40-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4796-55-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4796-35-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads