793d14f51a1af09192f9846e8408bf66241ee5c17c0d8abeb575f4cff4f05d3b

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
23/07/2024, 13:54

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General

Target

67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe
Size

53KB
MD5

67d7c08c8413ddc24efd9744d96af8c2
SHA1

2ea88cd2ec5e74d361efb1a9a6433d55e4f2abb4
SHA256

793d14f51a1af09192f9846e8408bf66241ee5c17c0d8abeb575f4cff4f05d3b
SHA512

bb0675ac0d6f7c9b41ecf3968e66324d4b93cd58634d5c0bafeaf90fa6ade9e3100d41205805453e741a891ca87a62d29a1e0b885bdd8e466e86836506982265
SSDEEP

768:VsK/sKcsBqkKSZPrj3RBMvIrN/jCYpKVu5pK8dv4pkn06FQtXHJxQ9E:JUwwaBbrN4I5ptdCi0F1HQm

Score

8^/10

persistence upx

Malware Config

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
38	1740	rundll32.exe
44	1740	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1296	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe
1740	rundll32.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1296-2-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/1296-1-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/1296-5-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/1296-12-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1296-11-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1296-13-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1296-19-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1740-30-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1740-39-0x0000000010000000-0x0000000010014000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSServer = "rundll32.exe C:\\Windows\\system32\\urqPhiIA.dll,#1"	rundll32.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\fccdaaBq.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\cbXPiJaa.dll	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\cbXPiJaa.dll	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\urqPhiIA.dll	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\urqPhiIA.dll	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A2587760-63ED-4EF5-B30D-A7C5B53EE597}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A2587760-63ED-4EF5-B30D-A7C5B53EE597}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A2587760-63ED-4EF5-B30D-A7C5B53EE597}\InprocServer32\ = "C:\\Windows\\SysWow64\\urqPhiIA.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A2587760-63ED-4EF5-B30D-A7C5B53EE597}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1296	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe
1296	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe
1740	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1296	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1296	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1296 wrote to memory of 604	1296	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe	5
PID 1296 wrote to memory of 1740	1296	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe	98
PID 1296 wrote to memory of 1740	1296	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe	98
PID 1296 wrote to memory of 1740	1296	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe	98
PID 1296 wrote to memory of 4368	1296	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe	99
PID 1296 wrote to memory of 4368	1296	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe	99
PID 1296 wrote to memory of 4368	1296	67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe	99
PID 1740 wrote to memory of 5008	1740	rundll32.exe	103
PID 1740 wrote to memory of 5008	1740	rundll32.exe	103
PID 1740 wrote to memory of 5008	1740	rundll32.exe	103

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:604

C:\Users\Admin\AppData\Local\Temp\67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1296
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Windows\system32\urqPhiIA.dll,a
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1740
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Windows\system32\fccdaaBq.dll",s
    3⤵
    PID:5008
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\removalfile.bat "C:\Users\Admin\AppData\Local\Temp\67d7c08c8413ddc24efd9744d96af8c2_JaffaCakes118.exe"
  2⤵
  PID:4368

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\removalfile.bat

Filesize
43B

MD5
9a7ef09167a6f4433681b94351509043

SHA1
259b1375ed8e84943ca1d42646bb416325c89e12

SHA256
d5739a0510d89da572eb0b0d394d4fb4dd361cd9ee0144b9b31c590df93c3be7

SHA512
96b84cd88a0e4b7c1122af3ed6ce5edf0a9a4e9bf79575eadfac16b2c46f1278d57755d29f21d7c6dcb4403be24b7ac7da4837c6cc9c602342a8f2b8e54883df

Download Submit
C:\Windows\SysWOW64\cbXPiJaa.dll

Filesize
36KB

MD5
2377d7567d7296f47a68eab0db975e5c

SHA1
7ef5871c460d085217a085eef96dce247c200f3c

SHA256
df9d00c3bbafb30bab32d05982ae5ef196c540a66b0fd5795eae25e158a9131a

SHA512
c163e3069cb501eecf54910650134dbad8ed4e93e801e38f003b8045e362f1b6b077ad01d0156f98c2f94f131923094addd2252fd0c19f6d8d0a9bcde50d4b9b

Download Submit
C:\Windows\SysWOW64\fccdaaBq.dll

Filesize
1KB

MD5
fd90302b492144848d0b6e1586b8ff59

SHA1
d4113b3dd8562bd35b83fc061c150e40be88de62

SHA256
f860168eb8130d37f549410bb59e3931e4a2dfb94cb49a1bb8675651433ffbc0

SHA512
45d9a6eac2c3b70d549edcf524628493250516a77a3f6593ae673debb1996a425cf76eb1de8eb0d0382c762e3c2b75255b0b53701be2e1845c30748e2d4660bd

Download Submit
memory/1296-11-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1296-19-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1296-3-0x0000000000470000-0x000000000047B000-memory.dmp

Filesize
44KB

Download
memory/1296-5-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1296-12-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1296-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1296-13-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1296-4-0x0000000000408000-0x0000000000411000-memory.dmp

Filesize
36KB

Download
memory/1296-20-0x0000000000470000-0x000000000047B000-memory.dmp

Filesize
44KB

Download
memory/1296-2-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1296-1-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1740-31-0x0000000000F10000-0x0000000000F11000-memory.dmp

Filesize
4KB

Download
memory/1740-32-0x000000001000E000-0x0000000010013000-memory.dmp

Filesize
20KB

Download
memory/1740-30-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1740-39-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1740-41-0x0000000000F10000-0x0000000000F11000-memory.dmp

Filesize
4KB

Download