f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28

General

Target
jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.exe
Size 128KB
Sample260924-b1p9vsbd46
SHA256 f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28
MD5 bdea98a07aca336eb2f1cbc583652487
SHA1 40e60e3683fe91f516b6dfc303b763634368dc71
SHA512 0e98d13c3a44f2bc66dcfa539ed93a061700f5092de747f56ed0e4ecead935bd462c1ac6106552190ea65937512724b1e050d6fd90ff40207b9b250ca01c2cd4
SSDEEP 1536:QZjhwBfbTkHkg/W2u5lzBLTVzmhpfMm930GdGsYT5lQFIJNj3b:Q1hwBfbTkHTu5lzCz1930n/Jl3b
TLSH
T1D4D3F817B794111EF293867158B1667A1A3BFC300861EE4F6384EE1D1931A83AEF275F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery execution persistence trojan

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2380	ac32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ac32 = "C:\\Windows\\system32\\ac32.exe"	jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	ac32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ac32.exe	jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.exe
File opened for modification	C:\Windows\SysWOW64\ac32.exe	jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.exe

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
5620	cmd.exe

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	jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ac32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1296	jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.exe
1296	jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.exe
1296	jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.exe
2380	ac32.exe
2380	ac32.exe
2380	ac32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1296 wrote to memory of 5620	1296	jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.exe	89
PID 5620 wrote to memory of 2380	5620	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.exe"
1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1296
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.bat" 0"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5620
- - C:\Windows\SysWOW64\ac32.exe
    C:\Windows\system32\ac32.exe /B
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2380

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

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

System Information Discovery

2

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

jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.bat

Path C:\Users\Admin\AppData\Local\Temp\jaffacakes118_f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28.bat
Size 441B
SHA256 56eba19c781edb7a90702dd97cc61c1d9d1a2e3d342ea78ce976ae9c6d3b7e48
MD5 fd24350ef44536e2138ccf9728077a2b
SHA1 9e60a1e79e2e9167e37dc1339094b5f6ed5b8676
SHA512 c93ac1602109093dd7cb2f307a72684f10d41f182d278a64b8aca982b2aed2c2151b455337405cdbe056b1dd5b8064622235f3e8d57eb6db54242c0e2e61da9b
TLSH
T1FFF027008387557CC810E86B6AF61A84B0945B8A1798E7040A975CE8EAE219CFDC9D5D
MD5 SHA1 SHA512 TLSH

Submit Download

ac32.exe

Path C:\Windows\SysWOW64\ac32.exe
Size 128KB
SHA256 f245b96be08bdc310a7d22eb1253a3e5e352c320823482aa0a7e387881e4af28
MD5 bdea98a07aca336eb2f1cbc583652487
SHA1 40e60e3683fe91f516b6dfc303b763634368dc71
SHA512 0e98d13c3a44f2bc66dcfa539ed93a061700f5092de747f56ed0e4ecead935bd462c1ac6106552190ea65937512724b1e050d6fd90ff40207b9b250ca01c2cd4
SSDEEP 1536:QZjhwBfbTkHkg/W2u5lzBLTVzmhpfMm930GdGsYT5lQFIJNj3b:Q1hwBfbTkHTu5lzCz1930n/Jl3b
TLSH
T1D4D3F817B794111EF293867158B1667A1A3BFC300861EE4F6384EE1D1931A83AEF275F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1296-0-0x0000000000400000-0x0000000000421000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads