35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b

General

Target
jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
Size 64KB
Sample260924-1llesssgpg
SHA256 35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b
MD5 5143a2337a6866499e44e560fa96ae35
SHA1 390062ff5cee30cd7de2bc9a18bdb833c316a332
SHA512 77df0678378682ed60129f3386a7ca01636e73e40294b3f8edfed13ef24e9d194ac96bbaa9105b3b0d84626ef6681a7700b541700115a65c6dd934d3f55e2db8
SSDEEP 1536:IX4UtZLfD0tSd9MfK0b4/0/Sda3O+NnAZ:IVZLfD0tSd0+M/znAZ
TLSH
T1E5538C06D1CB0062DEA0DC3C01E65FB9446665F626725EFE4FD48FF8282E098D5376CA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery execution

Malware Config

Signatures

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
6000	rundll32.exe

Disables service(s) 3 TTPs
defense_evasion execution

Windows Service
T1543.003

Service Stop
T1489

Service Execution
T1569.002

Loads dropped DLL 1 IoCs

pid	Process
6000	rundll32.exe

Stops running service(s) 4 TTPs
defense_evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\midimap.dll	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
File created	C:\Windows\SysWOW64\sysapp1.dll	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
File created	C:\Windows\SysWOW64\YUksuser.dll	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
File created	C:\Windows\SysWOW64\ksuser.dll	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
File created	C:\Windows\SysWOW64\YUmidimap.dll	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe

Launches sc.exe 2 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
1312	sc.exe
4008	sc.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4136	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
4136	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
4136	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
4136	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
4136	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
4136	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4136	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4136 wrote to memory of 5748	4136	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe	90
PID 4136 wrote to memory of 1312	4136	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe	91
PID 4136 wrote to memory of 4008	4136	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe	92
PID 4136 wrote to memory of 6000	4136	jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe	94
PID 5748 wrote to memory of 2920	5748	net.exe	97

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4136
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5748
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2920
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1312
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4008
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1790286260.dat, ServerMain c:\users\admin\appdata\local\temp\jaffacakes118_35c4cf3766d210179f02f1a95600072e2c72d8024f154d4bd0bf74dde329874b.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:6000

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

System Services

2

T1569

Service Execution

2

T1569.002

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Indicator Removal

1

T1070

File Deletion

1

T1070.004

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

2

T1489

Replay Monitor

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Downloads

1790286260.dat

Path C:\Users\Admin\AppData\Local\Temp\1790286260.dat
Size 34KB
SHA256 62b899764f973b31e4f26b86a8a2d3ed91bed512f3ffba0b28470bbea1a1b2f3
MD5 a8ae84544e55bf26016e4d164648d08e
SHA1 aa80890948b718196abc5ccd8b11ed58dddc1864
SHA512 71811dc01e82deee4520cd7874963e27106a542c0de94ef0ebe6e8f6d52b1184ddcd050fc35dd2f9237a892874af36b37125cc986eca811c05a234a71c56e328
SSDEEP 768:9S9sjAp8iHG+15Yrti87Kl7J2Id/nJRiDN5:9S9sViHlYrN7KlT/JRw
TLSH
T1B5F26C42764789A2D1E3423077413FB69BF838345E035269EB73CA9B1D795C2DE3A24B
MD5 SHA1 SHA512 SSDEEP TLSH

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