c683f142faad47db9fcbaed2ce63aa670b711b6f5622b89ffa4263b7f7ac717e

General

Target

36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe
Size

32KB
MD5

36adbdb71ebab3834301b628f47c6ea9
SHA1

b905a7a5564382484c2f2a1257db4363ed9f4c37
SHA256

c683f142faad47db9fcbaed2ce63aa670b711b6f5622b89ffa4263b7f7ac717e
SHA512

7037f184e9869c457731534162b98b259f672194aab563ef59f5fadb4f884efe18878e18eda39b051b4015bb6594902147cd7873aac132a29910e9b23702c317
SSDEEP

768:EEl6Ovnxd1HN1SZnpDoR89WIB825ykUPLfUMXW1F52SDV:EEkWB1SZ6RcB82chPAX1NDV

Score

10^/10

evasion execution upx

Malware Config

Signatures

Disables service(s) 3 TTPs
evasion execution

Windows Service
T1543.003

Service Stop
T1489

Service Execution
T1569.002
Stops running service(s) 4 TTPs
evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Deletes itself 1 IoCs

pid	Process
3024	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
3024	rundll32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2624-0-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral1/memory/2624-10-0x0000000000400000-0x0000000000415000-memory.dmp	upx

Drops file in System32 directory 8 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\sysapp17.dll	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\YUksuser.dll	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\YUksuser.dll	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\ksuser.dll	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\YUmidimap.dll	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\midimap.dll	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe

Launches sc.exe 2 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2124	sc.exe
1404	sc.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe
2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe
2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 3064	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	31
PID 2624 wrote to memory of 3064	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	31
PID 2624 wrote to memory of 3064	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	31
PID 2624 wrote to memory of 3064	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	31
PID 2624 wrote to memory of 2124	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	32
PID 2624 wrote to memory of 2124	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	32
PID 2624 wrote to memory of 2124	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	32
PID 2624 wrote to memory of 2124	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	32
PID 2624 wrote to memory of 1404	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	33
PID 2624 wrote to memory of 1404	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	33
PID 2624 wrote to memory of 1404	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	33
PID 2624 wrote to memory of 1404	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	33
PID 2624 wrote to memory of 3024	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	34
PID 2624 wrote to memory of 3024	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	34
PID 2624 wrote to memory of 3024	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	34
PID 2624 wrote to memory of 3024	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	34
PID 2624 wrote to memory of 3024	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	34
PID 2624 wrote to memory of 3024	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	34
PID 2624 wrote to memory of 3024	2624	36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe	34
PID 3064 wrote to memory of 2756	3064	net.exe	38
PID 3064 wrote to memory of 2756	3064	net.exe	38
PID 3064 wrote to memory of 2756	3064	net.exe	38
PID 3064 wrote to memory of 2756	3064	net.exe	38

C:\Users\Admin\AppData\Local\Temp\36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\36adbdb71ebab3834301b628f47c6ea9_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3064
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    PID:2756
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  PID:2124
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  PID:1404
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1720651082.dat, ServerMain c:\users\admin\appdata\local\temp\36adbdb71ebab3834301b628f47c6ea9_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  PID:3024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

2

T1569

Service Execution

2

T1569.002

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

2

T1489

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\1720651082.dat

Filesize
31KB

MD5
549312358cf6e474c7c2594eb9d22592

SHA1
6216544e1b1d475971ee41077ec2c9e3f7e0f31a

SHA256
06c1a837e60a32dddf89c69a0cdb956e0366909522a36cc081eb2f09ecfd6103

SHA512
87fc7d0ea4f96f3092432bbd6a689127e3b1762bb8652575e20658a87585e4333d4c5bc5b098599076183d347b11a9d01abfe2a1e04e6080e510886085fb1a40

Download Submit
memory/2624-0-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2624-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

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