modiloader | e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606

General

Target

e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe
Size

90KB
MD5

b5998ed5ce520568158923b2dfd222c6
SHA1

8eef994abe50fbe7c5e30d62194c8af42db99a84
SHA256

e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606
SHA512

c7f958707a75e1497cde04369ebaf5ba1af1c2bad6b7ece26d0dfa3aad96bfacb645e7360e4262fe0b646e30cd70a723e4c0468a17652ab869f3aa63b0a2d16c
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

Score

10^/10

modiloader persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

Detects Windows executables referencing non-Windows User-Agents 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4896-50-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/4896-49-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/4896-53-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/4896-58-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

ModiLoader Second Stage 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4896-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4896-49-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4896-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4896-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

UPX dump on OEP (original entry point) 15 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1964-0-0x0000000000400000-0x0000000000453000-memory.dmp	UPX
behavioral2/memory/3192-5-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/3192-9-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/3192-11-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/1964-13-0x0000000000400000-0x0000000000453000-memory.dmp	UPX
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe	UPX
behavioral2/memory/4896-42-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/4896-50-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/4896-49-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/4896-53-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/4896-48-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/1932-47-0x0000000000400000-0x0000000000453000-memory.dmp	UPX
behavioral2/memory/3192-56-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/4568-57-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/4896-58-0x0000000000400000-0x0000000000414000-memory.dmp	UPX

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

Processes:

e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid process

1932 csrsll.exe
4568 csrsll.exe
4896 csrsll.exe

pid	process
1932	csrsll.exe
4568	csrsll.exe
4896	csrsll.exe

UPX packed file 15 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1964-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3192-5-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3192-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3192-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1964-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe	upx
behavioral2/memory/4896-42-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4896-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4896-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4896-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4896-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1932-47-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3192-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4568-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4896-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.execsrsll.exe

description	pid	process	target process
PID 1964 set thread context of 3192	1964	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe
PID 1932 set thread context of 4568	1932	csrsll.exe	csrsll.exe
PID 1932 set thread context of 4896	1932	csrsll.exe	csrsll.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

csrsll.exe

description	pid	process
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe
Token: SeDebugPrivilege	4568	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exee8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.execsrsll.execsrsll.exe

pid	process
1964	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe
3192	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe
1932	csrsll.exe
4568	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exee8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.execmd.execsrsll.exe

description	pid	process	target process
PID 1964 wrote to memory of 3192	1964	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe
PID 1964 wrote to memory of 3192	1964	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe
PID 1964 wrote to memory of 3192	1964	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe
PID 1964 wrote to memory of 3192	1964	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe
PID 1964 wrote to memory of 3192	1964	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe
PID 1964 wrote to memory of 3192	1964	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe
PID 1964 wrote to memory of 3192	1964	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe
PID 1964 wrote to memory of 3192	1964	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe
PID 3192 wrote to memory of 1320	3192	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	cmd.exe
PID 3192 wrote to memory of 1320	3192	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	cmd.exe
PID 3192 wrote to memory of 1320	3192	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	cmd.exe
PID 1320 wrote to memory of 1576	1320	cmd.exe	reg.exe
PID 1320 wrote to memory of 1576	1320	cmd.exe	reg.exe
PID 1320 wrote to memory of 1576	1320	cmd.exe	reg.exe
PID 3192 wrote to memory of 1932	3192	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	csrsll.exe
PID 3192 wrote to memory of 1932	3192	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	csrsll.exe
PID 3192 wrote to memory of 1932	3192	e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe	csrsll.exe
PID 1932 wrote to memory of 4568	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4568	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4568	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4568	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4568	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4568	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4568	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4568	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4896	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4896	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4896	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4896	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4896	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4896	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4896	1932	csrsll.exe	csrsll.exe
PID 1932 wrote to memory of 4896	1932	csrsll.exe	csrsll.exe

C:\Users\Admin\AppData\Local\Temp\e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe
"C:\Users\Admin\AppData\Local\Temp\e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1964

C:\Users\Admin\AppData\Local\Temp\e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe
"C:\Users\Admin\AppData\Local\Temp\e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3192

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NBMVM.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:1320

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
PID:1576

C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1932

C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4568

C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
4⤵
- Executes dropped EXE
PID:4896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
b5998ed5ce520568158923b2dfd222c6

SHA1
8eef994abe50fbe7c5e30d62194c8af42db99a84

SHA256
e8045854aaa5789e7af6cc8655b574ec738678b9f2a98d98c242d91ed1e22606

SHA512
c7f958707a75e1497cde04369ebaf5ba1af1c2bad6b7ece26d0dfa3aad96bfacb645e7360e4262fe0b646e30cd70a723e4c0468a17652ab869f3aa63b0a2d16c

Download Submit
memory/1932-47-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1964-3-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download
memory/1964-4-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/1964-7-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/1964-6-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/1964-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1964-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3192-5-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3192-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3192-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3192-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4568-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4896-42-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads