modiloader | e49440a8263ee6ec5c886d933eaeaaf03730890fca88609d06a8d2758ab09e67

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 5 IoCs

resource	yara_rule
behavioral1/memory/1848-0-0x0000000000400000-0x0000000000412000-memory.dmp	modiloader_stage2
behavioral1/files/0x000c00000001226b-3.dat	modiloader_stage2
behavioral1/memory/2384-11-0x0000000000400000-0x0000000000412000-memory.dmp	modiloader_stage2
behavioral1/memory/1848-9-0x0000000000400000-0x0000000000412000-memory.dmp	modiloader_stage2
behavioral1/memory/2384-13-0x0000000000400000-0x0000000000412000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

pid	Process
2384	csrss.exe

Loads dropped DLL 2 IoCs

pid	Process
1848	f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe
1848	f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\windefender = "\"C:\\Users\\Admin\\AppData\\Roaming\\csrss.exe\""	f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\windefender = "\"C:\\Users\\Admin\\AppData\\Roaming\\csrss.exe\""	csrss.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1848-0-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/files/0x000c00000001226b-3.dat	upx
behavioral1/memory/2384-11-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/1848-9-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/2384-13-0x0000000000400000-0x0000000000412000-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 4 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 2384	1848	f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe	30
PID 1848 wrote to memory of 2384	1848	f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe	30
PID 1848 wrote to memory of 2384	1848	f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe	30
PID 1848 wrote to memory of 2384	1848	f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f4a2b1b3354b8ccc81dbd5b65e9ccf3e_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1848
- 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:2384

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

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Roaming\csrss.exe

Filesize
66KB

MD5
f4a2b1b3354b8ccc81dbd5b65e9ccf3e

SHA1
123963f125c460baab35ec139b637c6a48fd0b60

SHA256
e49440a8263ee6ec5c886d933eaeaaf03730890fca88609d06a8d2758ab09e67

SHA512
f389070f1e781817a354f8171dac4dcc5f07d68cc4d5c0ede7c37f7d2ac0db007d50ce06b0cc7674936ea09598bc73a209bdde5a8db5a283801f00317a332c59

Download Submit
memory/1848-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1848-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2384-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2384-13-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads