modiloader | 3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c

General

Target

3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
Size

308KB
MD5

8131b3e9b26f0df46c846b7ad00e2cd5
SHA1

be90eae1ea44ef6547f75331a36f751e65aaeea5
SHA256

3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c
SHA512

fdbb05a5674591360046ada3b5c8bf7d8bb41b130ac1d43f48080b26a99380972e4f80c5891464c6532fd62caede6dcedb87cc68d97a8034441835af6655c8f0
SSDEEP

3072:/c3sBG7mXh7m/zZM3jAbNOM6CNtDCZFL:E3sBz0Z4Mj72F

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 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/964-295418-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/964-295426-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

ModiLoader Second Stage 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/964-295418-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/964-295426-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

UPX dump on OEP (original entry point) 11 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1728-147666-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral1/memory/1728-147670-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral1/memory/1728-147672-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral1/memory/1728-147674-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral1/memory/1728-147673-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral1/memory/1728-182739-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral1/memory/964-295416-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral1/memory/1728-295415-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral1/memory/964-295418-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral1/memory/488-295423-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral1/memory/964-295426-0x0000000000400000-0x0000000000414000-memory.dmp	UPX

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid process

2348 csrsll.exe
488 csrsll.exe
964 csrsll.exe

pid	process
2348	csrsll.exe
488	csrsll.exe
964	csrsll.exe

Loads dropped DLL 5 IoCs

Processes:

3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe

pid	process
1728	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
1728	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
1728	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
1728	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
1728	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe

UPX packed file 12 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1728-147666-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1728-147664-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1728-147670-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1728-147672-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1728-147674-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1728-147673-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1728-182739-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/964-295416-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1728-295415-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/964-295418-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/488-295423-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/964-295426-0x0000000000400000-0x0000000000414000-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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.execsrsll.exe

description	pid	process	target process
PID 2288 set thread context of 1728	2288	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
PID 2348 set thread context of 488	2348	csrsll.exe	csrsll.exe
PID 2348 set thread context of 964	2348	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 56 IoCs

Processes:

csrsll.exe

description	pid	process
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe
Token: SeDebugPrivilege	488	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.execsrsll.execsrsll.exe

pid	process
2288	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
1728	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
2348	csrsll.exe
488	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.execmd.execsrsll.exe

description	pid	process	target process
PID 2288 wrote to memory of 1728	2288	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
PID 2288 wrote to memory of 1728	2288	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
PID 2288 wrote to memory of 1728	2288	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
PID 2288 wrote to memory of 1728	2288	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
PID 2288 wrote to memory of 1728	2288	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
PID 2288 wrote to memory of 1728	2288	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
PID 2288 wrote to memory of 1728	2288	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
PID 2288 wrote to memory of 1728	2288	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
PID 1728 wrote to memory of 1528	1728	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	cmd.exe
PID 1728 wrote to memory of 1528	1728	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	cmd.exe
PID 1728 wrote to memory of 1528	1728	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	cmd.exe
PID 1728 wrote to memory of 1528	1728	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	cmd.exe
PID 1528 wrote to memory of 2920	1528	cmd.exe	reg.exe
PID 1528 wrote to memory of 2920	1528	cmd.exe	reg.exe
PID 1528 wrote to memory of 2920	1528	cmd.exe	reg.exe
PID 1528 wrote to memory of 2920	1528	cmd.exe	reg.exe
PID 1728 wrote to memory of 2348	1728	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	csrsll.exe
PID 1728 wrote to memory of 2348	1728	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	csrsll.exe
PID 1728 wrote to memory of 2348	1728	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	csrsll.exe
PID 1728 wrote to memory of 2348	1728	3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe	csrsll.exe
PID 2348 wrote to memory of 488	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 488	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 488	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 488	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 488	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 488	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 488	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 488	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 964	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 964	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 964	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 964	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 964	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 964	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 964	2348	csrsll.exe	csrsll.exe
PID 2348 wrote to memory of 964	2348	csrsll.exe	csrsll.exe

C:\Users\Admin\AppData\Local\Temp\3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
"C:\Users\Admin\AppData\Local\Temp\3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2288

C:\Users\Admin\AppData\Local\Temp\3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe
"C:\Users\Admin\AppData\Local\Temp\3c5e883513f7391c6e27923beaa6a6e90846ee5cb13b7c31570d5c10a944a75c.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1728

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\NOKIK.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:1528

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:2920

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:2348

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:488

C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
4⤵
- Executes dropped EXE
PID:964

Network

MITRE ATT&CK Matrix ATT&CK v13

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\NOKIK.bat
Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Filesize
308KB

MD5
ce4d0c07fd95ee26245d61070c5e5472

SHA1
c4c4d798c94819e2ff71368f380e8d725c5c47cb

SHA256
64f67b3fa0b5e6aebdaa8bee943f2a14689b66da55c835e6b0ab76fa6bde0a71

SHA512
531c373299b56a7b85bd9abf26e9a508f3fa16e2098aa0e4012c179563c524f17af03161d75b2e79b9e5ae6c85e369c6c508872528cb83f1b0f2336b53484a68

Download Submit
memory/488-295423-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/964-295426-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/964-295418-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/964-295416-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1728-147673-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1728-147662-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1728-147672-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1728-147674-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1728-147664-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1728-147666-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1728-147670-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1728-182739-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1728-147668-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1728-295415-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2288-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2288-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2288-147661-0x0000000001D30000-0x0000000001D31000-memory.dmp

Filesize
4KB

Download
memory/2348-147714-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2348-295398-0x0000000001DF0000-0x0000000001DF1000-memory.dmp

Filesize
4KB

Download
memory/2348-256965-0x0000000001D50000-0x0000000001D51000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads