e595de511de89170caab9a1a817e0b36491884a710cdc1073f187dac556f3943

General

Target

ee32ca9d3f2523de10c054b34448e2de_JaffaCakes118.exe
Size

6.2MB
MD5

ee32ca9d3f2523de10c054b34448e2de
SHA1

345287ce9e7ad428dfc8df12c9c8d0d672de02a6
SHA256

e595de511de89170caab9a1a817e0b36491884a710cdc1073f187dac556f3943
SHA512

347106550803116f750b3a893f144b208d03cbb12ed3d54540e8f2ccc9b3a2c33fb1f8855bcf570b7ce7f22ccf75a5f244b140fd404eb19b670650911758e6f7
SSDEEP

98304:Gd8Xs71+FPZaVnIT79OQx/18SByYHm42zznswh1duQOioOFgkjKK7o:GTB+FPZUQpJ19yYP2EQBOeHT7o

Score

10^/10

discovery persistence themida

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\UserInit = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\ee32ca9d3f2523de10c054b34448e2de_JaffaCakes118.exe\","	ee32ca9d3f2523de10c054b34448e2de_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
5492	winlogonn.exe

Themida packer 1 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/files/0x0007000000023618-8.dat	themida

Enumerates connected drives 3 TTPs 2 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\X:	cmd.exe
File opened (read-only)	\??\X:	winlogonn.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\system\winlogonn.exe	ee32ca9d3f2523de10c054b34448e2de_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	ee32ca9d3f2523de10c054b34448e2de_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	subst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlogonn.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 5560 wrote to memory of 3396	5560	ee32ca9d3f2523de10c054b34448e2de_JaffaCakes118.exe	89
PID 5560 wrote to memory of 3396	5560	ee32ca9d3f2523de10c054b34448e2de_JaffaCakes118.exe	89
PID 5560 wrote to memory of 3396	5560	ee32ca9d3f2523de10c054b34448e2de_JaffaCakes118.exe	89
PID 5560 wrote to memory of 5888	5560	ee32ca9d3f2523de10c054b34448e2de_JaffaCakes118.exe	99
PID 5560 wrote to memory of 5888	5560	ee32ca9d3f2523de10c054b34448e2de_JaffaCakes118.exe	99
PID 5560 wrote to memory of 5888	5560	ee32ca9d3f2523de10c054b34448e2de_JaffaCakes118.exe	99
PID 5888 wrote to memory of 5492	5888	cmd.exe	101
PID 5888 wrote to memory of 5492	5888	cmd.exe	101
PID 5888 wrote to memory of 5492	5888	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\ee32ca9d3f2523de10c054b34448e2de_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ee32ca9d3f2523de10c054b34448e2de_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5560
- C:\Windows\SysWOW64\subst.exe
  subst X: "C:\WINDOWS\system"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3396
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c "X:\Ø.bat"
  2⤵
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5888
- - \??\X:\winlogonn.exe
    "X:\winlogonn.exe"
    3⤵
    - Executes dropped EXE
    - Enumerates connected drives
    - System Location Discovery: System Language Discovery
    PID:5492

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4380,i,2904906934812054273,11716976550456127484,262144 --variations-seed-version --mojo-platform-channel-handle=1288 /prefetch:8
1⤵
PID:4412

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

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

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

C:\Windows\System\winlogonn.exe

Filesize
5.7MB

MD5
dfeec1d32313d2292dc5fe321a6a5f56

SHA1
179e17d1639d7b5e1842ec60265ca1407d928f1e

SHA256
0f5ed8a83014ef515e1141f8ff8a755035d43ea0fd3c151dce4630be287a4f6e

SHA512
d7ec36bd01321baf102a4bbaf5c75670d5944a74f1cb0b745d15edb9d11efd9df1a5641f0b41174b8231e65311a11c724df9f2885869cd78dec05e569efc3ebe

Download Submit
\??\X:\Ø.bat

Filesize
29B

MD5
e2bb6bbc7a360342837e5b1b686fd153

SHA1
3174acc34aeeb997f6a998d913aefe46fc6f2486

SHA256
d4daf267487e19b19c176b856971cedd42c94d7e4baee926e8b3d327201df238

SHA512
8d65a5895a0e05bde96d9168bb40372777a27f4ef2432874ead08ce3dd546fcfc5ac5d14265c8a08bf983b55e4810cbb0dd328ce1bd1bdd5e8c9e5365d11476e

Download Submit
memory/5492-11-0x0000000002D30000-0x0000000002D31000-memory.dmp

Filesize
4KB

Download
memory/5492-12-0x0000000002C40000-0x0000000002D2A000-memory.dmp

Filesize
936KB

Download
memory/5492-13-0x0000000002D30000-0x0000000002D31000-memory.dmp

Filesize
4KB

Download
memory/5560-0-0x00000000028D0000-0x00000000028D1000-memory.dmp

Filesize
4KB

Download
memory/5560-2-0x00000000028D0000-0x00000000028D1000-memory.dmp

Filesize
4KB

Download
memory/5560-1-0x0000000000400000-0x0000000000A2F000-memory.dmp

Filesize
6.2MB

Download
memory/5560-6-0x0000000000400000-0x0000000000A2F000-memory.dmp

Filesize
6.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads