tofsee | 1bf28e028ac03bf57bea8030dcecf8275bb84619348fb6b6fe834e8b8fe8113b

General

Target

aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe
Size

279KB
MD5

aca6ce478caeff079e8c9d1bbb063aed
SHA1

d36e184d120f71b3c430c4709a64395921ab2e46
SHA256

1bf28e028ac03bf57bea8030dcecf8275bb84619348fb6b6fe834e8b8fe8113b
SHA512

291ad5da14c0c1d4f5c96d8c3b5e909a992d7c532df948e8d8a816287a1fa1b9a0f5043cebd082ce2c60939ec8c931753141300bb5eefc88d24730442e0a2f21
SSDEEP

3072:VWWX+oGUd1Qcn50hOK0Ypc+tSVipzFIgBi/tNL2AMmbvlmMyoOPiW5ewkkT4rbo4:4XO1QuuO4plh7BwtojqlQDLT8wS

Score

10^/10

tofsee discovery persistence trojan

Malware Config

Extracted

Family

tofsee

C2

91.218.38.245

188.165.132.183

rgtryhbgddtyh.biz

wertdghbyrukl.ch

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Deletes itself 1 IoCs

pid	Process
2676	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2804	hhqpbnac.exe

Loads dropped DLL 2 IoCs

pid	Process
2736	aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe
2736	aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.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\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\hhqpbnac.exe\""	aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	hhqpbnac.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	hhqpbnac.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2804 set thread context of 2364	2804	hhqpbnac.exe	33

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hhqpbnac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 2804	2736	aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe	30
PID 2736 wrote to memory of 2804	2736	aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe	30
PID 2736 wrote to memory of 2804	2736	aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe	30
PID 2736 wrote to memory of 2804	2736	aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe	30
PID 2736 wrote to memory of 2676	2736	aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe	31
PID 2736 wrote to memory of 2676	2736	aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe	31
PID 2736 wrote to memory of 2676	2736	aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe	31
PID 2736 wrote to memory of 2676	2736	aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe	31
PID 2804 wrote to memory of 2364	2804	hhqpbnac.exe	33
PID 2804 wrote to memory of 2364	2804	hhqpbnac.exe	33
PID 2804 wrote to memory of 2364	2804	hhqpbnac.exe	33
PID 2804 wrote to memory of 2364	2804	hhqpbnac.exe	33
PID 2804 wrote to memory of 2364	2804	hhqpbnac.exe	33
PID 2804 wrote to memory of 2364	2804	hhqpbnac.exe	33

C:\Users\Admin\AppData\Local\Temp\aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\aca6ce478caeff079e8c9d1bbb063aed_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Users\Admin\hhqpbnac.exe
  "C:\Users\Admin\hhqpbnac.exe"
  2⤵
  - Executes dropped EXE
  - Maps connected drives based on registry
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2804
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2364
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\1232.bat" "
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Peripheral Device Discovery

Query Registry

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

C:\Users\Admin\AppData\Local\Temp\1232.bat

Filesize
266B

MD5
0e66be296f6c282f2c1d9439c1e47ffb

SHA1
c1ca9835c0b5e62df77e118f3fd32fcf767966e3

SHA256
fe41b5591b14a899e3892c1713f2df23b6027fdf65e2d700b247c2880a461f3f

SHA512
d7cfff62267f23ed176f67cf04a8cac1c7eae69725123058f1edc17b8c5ead05c96a5ca14f1f235bf66676f55b51753eea34bb95e2fb8af509a81caf3a2f7b8b

Download Submit
\Users\Admin\hhqpbnac.exe

Filesize
279KB

MD5
aca6ce478caeff079e8c9d1bbb063aed

SHA1
d36e184d120f71b3c430c4709a64395921ab2e46

SHA256
1bf28e028ac03bf57bea8030dcecf8275bb84619348fb6b6fe834e8b8fe8113b

SHA512
291ad5da14c0c1d4f5c96d8c3b5e909a992d7c532df948e8d8a816287a1fa1b9a0f5043cebd082ce2c60939ec8c931753141300bb5eefc88d24730442e0a2f21

Download Submit
memory/2364-31-0x0000000000080000-0x0000000000091000-memory.dmp

Filesize
68KB

Download
memory/2364-44-0x0000000000080000-0x0000000000091000-memory.dmp

Filesize
68KB

Download
memory/2364-43-0x0000000000080000-0x0000000000091000-memory.dmp

Filesize
68KB

Download
memory/2364-41-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/2364-40-0x0000000000080000-0x0000000000091000-memory.dmp

Filesize
68KB

Download
memory/2364-28-0x0000000000080000-0x0000000000091000-memory.dmp

Filesize
68KB

Download
memory/2364-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-24-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2736-0-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2736-14-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2736-5-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2736-3-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2736-2-0x0000000000407000-0x0000000000408000-memory.dmp

Filesize
4KB

Download
memory/2736-1-0x00000000027B0000-0x00000000027B1000-memory.dmp

Filesize
4KB

Download
memory/2804-27-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2804-26-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2804-34-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads