modiloader | e49440a8263ee6ec5c886d933eaeaaf03730890fca88609d06a8d2758ab09e67

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24-09-2024 22:38

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General

Target

f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe
Size

66KB
MD5

f4a2b1b3354b8ccc81dbd5b65e9ccf3e
SHA1

123963f125c460baab35ec139b637c6a48fd0b60
SHA256

e49440a8263ee6ec5c886d933eaeaaf03730890fca88609d06a8d2758ab09e67
SHA512

f389070f1e781817a354f8171dac4dcc5f07d68cc4d5c0ede7c37f7d2ac0db007d50ce06b0cc7674936ea09598bc73a209bdde5a8db5a283801f00317a332c59
SSDEEP

768:RDoi8qZOfQNrJmXX0QzS0Ph7MZgLcAkut9kaWruX69tMhBB:RDv8qZeQqxzS0p7ARPaw

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/3720-0-0x0000000000400000-0x0000000000412000-memory.dmp	modiloader_stage2
behavioral2/files/0x0009000000023442-5.dat	modiloader_stage2
behavioral2/memory/3720-9-0x0000000000400000-0x0000000000412000-memory.dmp	modiloader_stage2
behavioral2/memory/400-10-0x0000000000400000-0x0000000000412000-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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
400	csrss.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\windefender = "\"C:\\Users\\Admin\\AppData\\Roaming\\csrss.exe\""	f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\windefender = "\"C:\\Users\\Admin\\AppData\\Roaming\\csrss.exe\""	csrss.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3720-0-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/files/0x0009000000023442-5.dat	upx
behavioral2/memory/3720-9-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/400-10-0x0000000000400000-0x0000000000412000-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 2 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	f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3720 wrote to memory of 400	3720	f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe	82
PID 3720 wrote to memory of 400	3720	f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe	82
PID 3720 wrote to memory of 400	3720	f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe	82

C:\Users\Admin\AppData\Local\Temp\f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3720
- C:\Users\Admin\AppData\Roaming\csrss.exe
  "C:\Users\Admin\AppData\Roaming\csrss.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:400

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\Roaming\csrss.exe

Filesize
66KB

MD5
f4a2b1b3354b8ccc81dbd5b65e9ccf3e

SHA1
123963f125c460baab35ec139b637c6a48fd0b60

SHA256
e49440a8263ee6ec5c886d933eaeaaf03730890fca88609d06a8d2758ab09e67

SHA512
f389070f1e781817a354f8171dac4dcc5f07d68cc4d5c0ede7c37f7d2ac0db007d50ce06b0cc7674936ea09598bc73a209bdde5a8db5a283801f00317a332c59

Download Submit
memory/400-10-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3720-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3720-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads