e97834a76e6b88e022aba03d0b6a51b89eb7f7828f6502ee3ebb4b694bdbb434

General

Target

a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe
Size

52KB
MD5

a2c6f8de437fe1e80895cac6f23af079
SHA1

0db7e6a662f707e60b00514e89955627b54b0fed
SHA256

e97834a76e6b88e022aba03d0b6a51b89eb7f7828f6502ee3ebb4b694bdbb434
SHA512

39ed17b99617348ca1f45e5e5d7d5cd01c8226357e5883d178de77d38158d909201d52cd86dcb88b166215e9207c1715f1273db2cc19372874ed8fa1c484406a
SSDEEP

768:XgiTuh47f1pYVvaJ24ZFBoafXQLUEuYsaEAZDAsCsWZXO4F9fQrqSebKntQ1ArYY:CW7LYk8YXQLU/YseZhCsWhOqSIKVrYY

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4820	svchost.exe

Executes dropped EXE 2 IoCs

pid	Process
736	svchost.exe
4820	svchost.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1368-2-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/1368-5-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/1368-6-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/1368-12-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/4820-18-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/4820-19-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/4820-20-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/4820-22-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe"	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Startup = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\svchost.exe"	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\svchost.exe"	svchost.exe

Enumerates connected drives 3 TTPs 21 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)	\??\R:	svchost.exe
File opened (read-only)	\??\S:	svchost.exe
File opened (read-only)	\??\G:	svchost.exe
File opened (read-only)	\??\H:	svchost.exe
File opened (read-only)	\??\I:	svchost.exe
File opened (read-only)	\??\N:	svchost.exe
File opened (read-only)	\??\O:	svchost.exe
File opened (read-only)	\??\T:	svchost.exe
File opened (read-only)	\??\U:	svchost.exe
File opened (read-only)	\??\E:	svchost.exe
File opened (read-only)	\??\J:	svchost.exe
File opened (read-only)	\??\K:	svchost.exe
File opened (read-only)	\??\L:	svchost.exe
File opened (read-only)	\??\M:	svchost.exe
File opened (read-only)	\??\Q:	svchost.exe
File opened (read-only)	\??\W:	svchost.exe
File opened (read-only)	\??\Y:	svchost.exe
File opened (read-only)	\??\P:	svchost.exe
File opened (read-only)	\??\V:	svchost.exe
File opened (read-only)	\??\X:	svchost.exe
File opened (read-only)	\??\Z:	svchost.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1644 set thread context of 1368	1644	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe	83
PID 736 set thread context of 4820	736	svchost.exe	89

System Location Discovery: System Language Discovery 1 TTPs 3 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	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4820	svchost.exe
4820	svchost.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 1368	1644	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe	83
PID 1644 wrote to memory of 1368	1644	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe	83
PID 1644 wrote to memory of 1368	1644	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe	83
PID 1644 wrote to memory of 1368	1644	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe	83
PID 1644 wrote to memory of 1368	1644	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe	83
PID 1644 wrote to memory of 1368	1644	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe	83
PID 1644 wrote to memory of 1368	1644	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe	83
PID 1644 wrote to memory of 1368	1644	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe	83
PID 1368 wrote to memory of 736	1368	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe	88
PID 1368 wrote to memory of 736	1368	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe	88
PID 1368 wrote to memory of 736	1368	a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe	88
PID 736 wrote to memory of 4820	736	svchost.exe	89
PID 736 wrote to memory of 4820	736	svchost.exe	89
PID 736 wrote to memory of 4820	736	svchost.exe	89
PID 736 wrote to memory of 4820	736	svchost.exe	89
PID 736 wrote to memory of 4820	736	svchost.exe	89
PID 736 wrote to memory of 4820	736	svchost.exe	89
PID 736 wrote to memory of 4820	736	svchost.exe	89
PID 736 wrote to memory of 4820	736	svchost.exe	89

C:\Users\Admin\AppData\Local\Temp\a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Users\Admin\AppData\Local\Temp\a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\a2c6f8de437fe1e80895cac6f23af079_JaffaCakes118.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1368
- - C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:736
  - - C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
      4⤵
      Deletes itself
      Executes dropped EXE
      Enumerates connected drives
      Suspicious behavior: EnumeratesProcesses
      PID:4820

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

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:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe

Filesize
52KB

MD5
a2c6f8de437fe1e80895cac6f23af079

SHA1
0db7e6a662f707e60b00514e89955627b54b0fed

SHA256
e97834a76e6b88e022aba03d0b6a51b89eb7f7828f6502ee3ebb4b694bdbb434

SHA512
39ed17b99617348ca1f45e5e5d7d5cd01c8226357e5883d178de77d38158d909201d52cd86dcb88b166215e9207c1715f1273db2cc19372874ed8fa1c484406a

Download Submit
memory/1368-2-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1368-5-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1368-6-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1368-12-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1644-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/1644-1-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/1644-4-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4820-18-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4820-19-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4820-20-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4820-22-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads