4aa5011c326557c30dd7ff7a0876db6d9015f9bcc1a2169fd6e28b2bcf233c06

General

Target

c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe
Size

255KB
MD5

c831720fb411d5fd4400cf50f74b7245
SHA1

5497b79574be3011b6f79af264e89e3666626ad6
SHA256

4aa5011c326557c30dd7ff7a0876db6d9015f9bcc1a2169fd6e28b2bcf233c06
SHA512

e9e90d86931c24bfd0a96c7d6431e64c859d2c4865480408a338101ed7548bbe8443df8be148215a7670a1f848dc72619e3bda53c338db11df4695efcac58d9a
SSDEEP

6144:0kyacNKIjGAP4PiIz9/d3wtoixPEgyGXT/KsGta+of7DnHKc7igrW8:0kiZv492to4Hb/KTv2Xqc7HJ

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
1824	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe
1824	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2920-19-0x0000000000400000-0x0000000000434000-memory.dmp	upx
behavioral1/memory/2920-13-0x0000000000400000-0x0000000000434000-memory.dmp	upx
behavioral1/memory/2920-15-0x0000000000400000-0x0000000000434000-memory.dmp	upx
behavioral1/memory/2920-22-0x0000000000400000-0x0000000000434000-memory.dmp	upx
behavioral1/memory/2920-21-0x0000000000400000-0x0000000000434000-memory.dmp	upx
behavioral1/memory/2920-23-0x0000000000400000-0x0000000000434000-memory.dmp	upx
behavioral1/memory/2920-26-0x0000000000400000-0x0000000000434000-memory.dmp	upx
behavioral1/memory/2920-24-0x0000000000400000-0x0000000000434000-memory.dmp	upx

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1824 set thread context of 2920	1824	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe	30

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2820	2920	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 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	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1824 wrote to memory of 2920	1824	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe	30
PID 1824 wrote to memory of 2920	1824	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe	30
PID 1824 wrote to memory of 2920	1824	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe	30
PID 1824 wrote to memory of 2920	1824	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe	30
PID 1824 wrote to memory of 2920	1824	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe	30
PID 1824 wrote to memory of 2920	1824	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe	30
PID 1824 wrote to memory of 2920	1824	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe	30
PID 1824 wrote to memory of 2920	1824	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe	30
PID 2920 wrote to memory of 2820	2920	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe	31
PID 2920 wrote to memory of 2820	2920	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe	31
PID 2920 wrote to memory of 2820	2920	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe	31
PID 2920 wrote to memory of 2820	2920	c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1824
- C:\Users\Admin\AppData\Local\Temp\c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\c831720fb411d5fd4400cf50f74b7245_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2920
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 200
    3⤵
    - Program crash
    PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsd78E8.tmp\System.dll

Filesize
11KB

MD5
fc90dfb694d0e17b013d6f818bce41b0

SHA1
3243969886d640af3bfa442728b9f0dff9d5f5b0

SHA256
7fe77ca13121a113c59630a3dba0c8aaa6372e8082393274da8f8608c4ce4528

SHA512
324f13aa7a33c6408e2a57c3484d1691ecee7c3c1366de2bb8978c8dc66b18425d8cab5a32d1702c13c43703e36148a022263de7166afdce141da2b01169f1c6

Download Submit
\Users\Admin\AppData\Local\Temp\reefer.dll

Filesize
100KB

MD5
3f5244090a5b3a807d59afbb50f3b529

SHA1
77d9d718b50673eb179adea0d4137bd0a931825e

SHA256
a389fafef3429061990ec264c0049e721b45ebffe07b0317f2e8155ebe2912d2

SHA512
9c3a6b43152d751fb5d3252111395ede7e5ef3e8c4e39d20f2d7424aa8f37858372d9846d3b4c7130ee563699b1ceb4323369995d2565e3d7b19ea48d55922f6

Download Submit
memory/1824-10-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/1824-8-0x00000000004D0000-0x00000000004EB000-memory.dmp

Filesize
108KB

Download
memory/2920-11-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2920-19-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2920-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2920-13-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2920-15-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2920-22-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2920-21-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2920-23-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2920-26-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2920-24-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

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