7a5f9d785dc88812cc7ac5295cb614a9961d610c93cf6f844c1ed7f2d1132e7b

General

Target

ac8f768b63004260638874c10310c45e_JaffaCakes118.exe
Size

1.8MB
MD5

ac8f768b63004260638874c10310c45e
SHA1

e2c442b858e005df4f8d035917910e3067c96eaa
SHA256

7a5f9d785dc88812cc7ac5295cb614a9961d610c93cf6f844c1ed7f2d1132e7b
SHA512

2dedd6b9c4a1264080c391d362df0576a52650f8ded3a37f73b94d52c07681eb0db539a17968674f88272a190c35662b324fec9d60f681905aaa2feed323d283
SSDEEP

49152:hSG8F6PjVeeV6Az1q/0kOkfQ+dDlIpGX2Kt+qTEQq0Gkv5eT4L7:hSG8F6PjVJ8u0XOkf5dDlWGXf+qAQq0f

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation	ac8f768b63004260638874c10310c45e_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1784	luwenltkjx.exe
1060	luwenltkjx.tmp

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3800-0-0x0000000000FD0000-0x00000000011FA000-memory.dmp	upx
behavioral2/memory/3800-7-0x0000000000FD0000-0x00000000011FA000-memory.dmp	upx

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 11 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\XiGuaPhoto\unins000.dat	luwenltkjx.tmp
File created	C:\Program Files (x86)\XiGuaPhoto\is-82C37.tmp	luwenltkjx.tmp
File created	C:\Program Files (x86)\XiGuaPhoto\is-RT67A.tmp	luwenltkjx.tmp
File created	C:\Program Files (x86)\XiGuaPhoto\is-5PMIG.tmp	luwenltkjx.tmp
File created	C:\Program Files (x86)\XiGuaPhoto\unins000.dat	luwenltkjx.tmp
File created	C:\Program Files (x86)\XiGuaPhoto\is-RFVF8.tmp	luwenltkjx.tmp
File created	C:\Program Files (x86)\XiGuaPhoto\is-NVABA.tmp	luwenltkjx.tmp
File created	C:\Program Files (x86)\XiGuaPhoto\is-4158U.tmp	luwenltkjx.tmp
File opened for modification	C:\Program Files (x86)\XiGuaPhoto\WICLoader.dll	luwenltkjx.tmp
File opened for modification	C:\Program Files (x86)\XiGuaPhoto\webp.dll	luwenltkjx.tmp
File opened for modification	C:\Program Files (x86)\XiGuaPhoto\XGViewer.exe	luwenltkjx.tmp

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3800	ac8f768b63004260638874c10310c45e_JaffaCakes118.exe
3800	ac8f768b63004260638874c10310c45e_JaffaCakes118.exe
3800	ac8f768b63004260638874c10310c45e_JaffaCakes118.exe
3800	ac8f768b63004260638874c10310c45e_JaffaCakes118.exe
1060	luwenltkjx.tmp
1060	luwenltkjx.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1060	luwenltkjx.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3800 wrote to memory of 708	3800	ac8f768b63004260638874c10310c45e_JaffaCakes118.exe	86
PID 3800 wrote to memory of 708	3800	ac8f768b63004260638874c10310c45e_JaffaCakes118.exe	86
PID 3800 wrote to memory of 708	3800	ac8f768b63004260638874c10310c45e_JaffaCakes118.exe	86
PID 708 wrote to memory of 1784	708	cmd.exe	89
PID 708 wrote to memory of 1784	708	cmd.exe	89
PID 708 wrote to memory of 1784	708	cmd.exe	89
PID 1784 wrote to memory of 1060	1784	luwenltkjx.exe	90
PID 1784 wrote to memory of 1060	1784	luwenltkjx.exe	90
PID 1784 wrote to memory of 1060	1784	luwenltkjx.exe	90

C:\Users\Admin\AppData\Local\Temp\ac8f768b63004260638874c10310c45e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ac8f768b63004260638874c10310c45e_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\luwenltkjx.exe" /VERYSILENT
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:708
- - C:\Users\Admin\AppData\Local\Temp\luwenltkjx.exe
    "C:\Users\Admin\AppData\Local\Temp\luwenltkjx.exe" /VERYSILENT
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1784
  - - C:\Users\Admin\AppData\Local\Temp\is-2FEDG.tmp\luwenltkjx.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-2FEDG.tmp\luwenltkjx.tmp" /SL5="$A020A,548300,54272,C:\Users\Admin\AppData\Local\Temp\luwenltkjx.exe" /VERYSILENT
      4⤵
      Executes dropped EXE
      Drops file in Program Files directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of FindShellTrayWindow
      PID:1060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\is-2FEDG.tmp\luwenltkjx.tmp

Filesize
900KB

MD5
f8b110dc2063d3b29502aa7042d26122

SHA1
1a0fd3db79eadc1ce714f6267d476ddbec0f5e79

SHA256
e8730b0bf8f94cbb8babbfefb32cef8e8d19ec823f28c33a7d48c78589710762

SHA512
f3125d3f575aff68105ebb3eadbce30547d34e12237d8ebbc555c6fe12bcc0a5ea85a38e26f2900d70af70ec07efde3b8cd65dc0fdada637496531245ea5052f

Download Submit
C:\Users\Admin\AppData\Local\Temp\luwenltkjx.exe

Filesize
834KB

MD5
e25719cce0f09a6a9469f9938c5bbc0d

SHA1
12ee46b8b074ae8005f3049ec2c17da63d3db8c3

SHA256
f860e5c669593498501214479f6964c619942b3a1e783b2368e7212f941d60fb

SHA512
8034b89797006f31092e04cbb0229b1d3d776a959e1be8c36f564f0cb21714dc5519c90abb944f5be49a77c31b98987aa1a38a1618a7d963a1c4f8217db42b1c

Download Submit
memory/1060-23-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1060-47-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1784-11-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1784-13-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1784-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3800-0-0x0000000000FD0000-0x00000000011FA000-memory.dmp

Filesize
2.2MB

Download
memory/3800-1-0x0000000010000000-0x0000000010204000-memory.dmp

Filesize
2.0MB

Download
memory/3800-7-0x0000000000FD0000-0x00000000011FA000-memory.dmp

Filesize
2.2MB

Download

Analysis

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