modiloader | 2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957

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
01/12/2024, 19:14

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General

Target

2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe
Size

90KB
MD5

82e51307ff21ffad9dafaf49676fe1cb
SHA1

5d59b50c3526b78ed9ee0cee82690d4f408c2570
SHA256

2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957
SHA512

1e8243b5c0ca118d6cbb1b42a895da36cbd68d6d0dbd68676d419a5c4a1844fd9c618a610b260798a74ce980edbbe337379f1fcc88a2f4ad6ff31aba565314d2
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDk:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3W

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/996-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/996-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/996-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/996-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe

Executes dropped EXE 3 IoCs

pid	Process
2500	csrsll.exe
1172	csrsll.exe
996	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-1-5-21-3756129449-3121373848-4276368241-1000\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 552 set thread context of 1008	552	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	82
PID 2500 set thread context of 1172	2500	csrsll.exe	95
PID 2500 set thread context of 996	2500	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/552-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/552-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1008-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1008-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1008-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/552-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b8a-29.dat	upx
behavioral2/memory/1008-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2500-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2500-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/996-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/996-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/996-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/996-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/996-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2500-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1008-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1172-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/996-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe
Token: SeDebugPrivilege	1172	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
552	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe
1008	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe
2500	csrsll.exe
1172	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 552 wrote to memory of 1008	552	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	82
PID 552 wrote to memory of 1008	552	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	82
PID 552 wrote to memory of 1008	552	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	82
PID 552 wrote to memory of 1008	552	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	82
PID 552 wrote to memory of 1008	552	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	82
PID 552 wrote to memory of 1008	552	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	82
PID 552 wrote to memory of 1008	552	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	82
PID 552 wrote to memory of 1008	552	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	82
PID 1008 wrote to memory of 1932	1008	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	83
PID 1008 wrote to memory of 1932	1008	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	83
PID 1008 wrote to memory of 1932	1008	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	83
PID 1932 wrote to memory of 4904	1932	cmd.exe	88
PID 1932 wrote to memory of 4904	1932	cmd.exe	88
PID 1932 wrote to memory of 4904	1932	cmd.exe	88
PID 1008 wrote to memory of 2500	1008	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	89
PID 1008 wrote to memory of 2500	1008	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	89
PID 1008 wrote to memory of 2500	1008	2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe	89
PID 2500 wrote to memory of 1172	2500	csrsll.exe	95
PID 2500 wrote to memory of 1172	2500	csrsll.exe	95
PID 2500 wrote to memory of 1172	2500	csrsll.exe	95
PID 2500 wrote to memory of 1172	2500	csrsll.exe	95
PID 2500 wrote to memory of 1172	2500	csrsll.exe	95
PID 2500 wrote to memory of 1172	2500	csrsll.exe	95
PID 2500 wrote to memory of 1172	2500	csrsll.exe	95
PID 2500 wrote to memory of 1172	2500	csrsll.exe	95
PID 2500 wrote to memory of 996	2500	csrsll.exe	96
PID 2500 wrote to memory of 996	2500	csrsll.exe	96
PID 2500 wrote to memory of 996	2500	csrsll.exe	96
PID 2500 wrote to memory of 996	2500	csrsll.exe	96
PID 2500 wrote to memory of 996	2500	csrsll.exe	96
PID 2500 wrote to memory of 996	2500	csrsll.exe	96
PID 2500 wrote to memory of 996	2500	csrsll.exe	96
PID 2500 wrote to memory of 996	2500	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe
"C:\Users\Admin\AppData\Local\Temp\2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:552
- C:\Users\Admin\AppData\Local\Temp\2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe
  "C:\Users\Admin\AppData\Local\Temp\2be787b5cd8e6de843357ab5b2a5286ec7fb9bda240492d328868d0619a9d957.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1008
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YMKJN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1932
  - - 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:4904
- - 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:2500
  - - 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:1172
  - - 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:996

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\YMKJN.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
71cb2a39fc52fa66df0f8869133c65c2

SHA1
8045d92536e8c807d2a9ba34bad08905b86b9bf3

SHA256
5f88b67262cf0788a6abd8a404fbe4f5a9caa844542624c0ca242eab2180764e

SHA512
c5fb2211e80bdb33b26ad10817f9b24013368ba66ecdc044d7675ad4d71ec24d957f320426c3ccf6133830e9ae047de9040e722b13860d7cb73661fa26293294

Download Submit
memory/552-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/552-5-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/552-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/552-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/552-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/552-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/996-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1008-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1008-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1008-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1008-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1008-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1008-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1172-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2500-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2500-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2500-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads