f1125a96bfaf5593315ab70d94458fdae936882f83a30b9b0b48a0a4d1c2984e

General

Target

2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe
Size

31KB
MD5

2ad90eb5c25cff5533eefbabd75a0ced
SHA1

06263ba435b3af9a86a8b2bfe8b6f34a0668a3dd
SHA256

f1125a96bfaf5593315ab70d94458fdae936882f83a30b9b0b48a0a4d1c2984e
SHA512

fbafba1678dc090f6e27ebdb776197d5e8fbf015234d40b137d167fffc234e181148180ed1b55c8e8eec611b800ab25f408fb0417a190a84d2fbe01c97f48953
SSDEEP

768:Rx1c2kbCkcXcsYK5/dQI+0MahTVLAxsCBiWXwV8+Wh/Z37:RGukc/YM/db+DahRLCBiWV+WPr

Score

10^/10

persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Program Files\\Common Files\\Microsoft Shared\\MSINFO\\iejore.exe"	2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2860	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2184	iejore.exe

Loads dropped DLL 2 IoCs

pid	Process
1068	2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe
1068	2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1068-3-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral1/files/0x0010000000011b9c-5.dat	upx
behavioral1/memory/2184-14-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral1/memory/1068-28-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral1/memory/2184-30-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral1/memory/2184-36-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral1/memory/2184-44-0x0000000000400000-0x000000000041A000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\Microsoft Shared\MSINFO\iejore.exe	2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe
File created	C:\Program Files\Common Files\Microsoft Shared\MSINFO\Del.bat	2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000\Software\Microsoft\Internet Explorer\Main	iejore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000\Software\Microsoft\Internet Explorer\Main\Search Page = "yl39.com/Article/fuke/changjian/pqy/201005/24162.html"	iejore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000\Software\Microsoft\Internet Explorer\Main\Window Title = "µã»÷µ¯³öÍøÒ³¹ã¸æ¡£ÓÀ¾Ã¹Ø±Õµ¯³ö´°¿Ú£¡"	iejore.exe

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000\Software\Microsoft\Internet Explorer\Main\Start Page = "yl39.com/Article/fuke/changjian/pqy/201005/24162.html"	iejore.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1068 wrote to memory of 2184	1068	2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe	30
PID 1068 wrote to memory of 2184	1068	2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe	30
PID 1068 wrote to memory of 2184	1068	2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe	30
PID 1068 wrote to memory of 2184	1068	2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe	30
PID 1068 wrote to memory of 2860	1068	2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe	31
PID 1068 wrote to memory of 2860	1068	2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe	31
PID 1068 wrote to memory of 2860	1068	2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe	31
PID 1068 wrote to memory of 2860	1068	2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2ad90eb5c25cff5533eefbabd75a0ced_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1068
- C:\Program Files\Common Files\Microsoft Shared\MSINFO\iejore.exe
  "C:\Program Files\Common Files\Microsoft Shared\MSINFO\iejore.exe"
  2⤵
  - Executes dropped EXE
  - Modifies Internet Explorer settings
  - Modifies Internet Explorer start page
  PID:2184
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Program Files\Common Files\Microsoft Shared\MSINFO\Del.bat""
  2⤵
  - Deletes itself
  PID:2860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\Common Files\Microsoft Shared\MSInfo\Del.bat

Filesize
212B

MD5
be1001be2f14d2c31e2c359ab54c1f01

SHA1
dd255e403504e892db47fdba1417f30f8849322f

SHA256
0a73971071427db2e4c683809bd5612ee85a43d39cc92a54a0733aca6827bb54

SHA512
c73e405cf7c92bf3ff7f9e82d92a16e0955bdfb2e1a7ae80c75ea7f8dd453d2d6a2d20a1ac6420183c4921b255addb4fe299075e98236f5a664fb91a5dcdd0bd

Download Submit
\Program Files\Common Files\Microsoft Shared\MSInfo\iejore.exe

Filesize
31KB

MD5
2ad90eb5c25cff5533eefbabd75a0ced

SHA1
06263ba435b3af9a86a8b2bfe8b6f34a0668a3dd

SHA256
f1125a96bfaf5593315ab70d94458fdae936882f83a30b9b0b48a0a4d1c2984e

SHA512
fbafba1678dc090f6e27ebdb776197d5e8fbf015234d40b137d167fffc234e181148180ed1b55c8e8eec611b800ab25f408fb0417a190a84d2fbe01c97f48953

Download Submit
memory/1068-3-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1068-12-0x0000000000270000-0x000000000028A000-memory.dmp

Filesize
104KB

Download
memory/1068-11-0x0000000000270000-0x000000000028A000-memory.dmp

Filesize
104KB

Download
memory/1068-28-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2184-14-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2184-30-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2184-36-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2184-44-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads