f5de7a3fbd44687a7567ca62120bfd8e3472beb0f0fda5d38e65eef1e94cce7d

General

Target

70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe
Size

12KB
MD5

70ec91c2c98a94d3b1c35f08b1243b39
SHA1

a6c4978dfa08463569684b50ba6ff11943f6a2b0
SHA256

f5de7a3fbd44687a7567ca62120bfd8e3472beb0f0fda5d38e65eef1e94cce7d
SHA512

ad68ab46432749e3791eb8446595ed6236ba09a8ca6d873f8e24a82f5c765c97829ba2cdb86cf84c3143ff5ac4cb93d7dd541834cb519d7d3696ce43be7f32be
SSDEEP

192:BNuvfTXluZ53Fv5DuSCR0vnT08mJIhfoHseIAvaB718LPB5p5RFEtYaFL8+:zIzk3FIEvT0pDM+iBAP15PyYa2+

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Deletes itself 1 IoCs

pid	Process
560	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2328	telmanzk.exe

Loads dropped DLL 2 IoCs

pid	Process
3036	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe
3036	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3036-1-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/files/0x0009000000016591-3.dat	upx
behavioral1/memory/3036-5-0x0000000000030000-0x000000000003F000-memory.dmp	upx
behavioral1/memory/2328-11-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/3036-20-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\telmanz.dll	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\telmanzk.exe	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\telmanzk.exe	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe

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	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3036	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 2328	3036	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe	31
PID 3036 wrote to memory of 2328	3036	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe	31
PID 3036 wrote to memory of 2328	3036	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe	31
PID 3036 wrote to memory of 2328	3036	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe	31
PID 3036 wrote to memory of 560	3036	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe	32
PID 3036 wrote to memory of 560	3036	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe	32
PID 3036 wrote to memory of 560	3036	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe	32
PID 3036 wrote to memory of 560	3036	70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Windows\SysWOW64\telmanzk.exe
  C:\Windows\system32\telmanzk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2328
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Privilege Escalation

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Defense Evasion

Credential Access

Discovery

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

C:\Users\Admin\AppData\Local\Temp\70ec91c2c98a94d3b1c35f08b1243b39_JaffaCakes118.exe.bat

Filesize
210B

MD5
342f74b911cb0eb3f48e4c84cc177990

SHA1
7ce72dd91e49997a0333dbc51d7763d3bb22eadc

SHA256
42f8c00391b911513e87a487599e7753b72756b5b9eb26e969c53b003bf8c120

SHA512
ba85949a7321583f62b82fc4a2228acf9a9b35f3db3532e1d99bcdea1da69574ecf37bda51a057a6e8645edf1b50b1ff7ee9fc10fe6656c236b09e528e49ec55

Download Submit
\Windows\SysWOW64\telmanzk.exe

Filesize
12KB

MD5
70ec91c2c98a94d3b1c35f08b1243b39

SHA1
a6c4978dfa08463569684b50ba6ff11943f6a2b0

SHA256
f5de7a3fbd44687a7567ca62120bfd8e3472beb0f0fda5d38e65eef1e94cce7d

SHA512
ad68ab46432749e3791eb8446595ed6236ba09a8ca6d873f8e24a82f5c765c97829ba2cdb86cf84c3143ff5ac4cb93d7dd541834cb519d7d3696ce43be7f32be

Download Submit
memory/2328-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3036-1-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3036-5-0x0000000000030000-0x000000000003F000-memory.dmp

Filesize
60KB

Download
memory/3036-20-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

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