tofsee | a425dd275e1b06734e737093123eae3a7d59a1e8449e789cd2d5c928640bcaa7

General

Target

2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe
Size

98KB
MD5

2253c8da99eb1c32dae9568bb749a13f
SHA1

c073f6de200f85d652e6bd2eb8d58bdd94ccdc8d
SHA256

a425dd275e1b06734e737093123eae3a7d59a1e8449e789cd2d5c928640bcaa7
SHA512

27e3973171ee5ff055add2009825adc68246c08db7b162de6473d8bac9cd2d3fd0b3a7493cc080580bad6fa12650db026e476d1e76a5ee9680265f44d885107d
SSDEEP

1536:rvcnFivCOLJVj7hH+sONVPVAtXghxNKOXGlT1EZ1o8g4VrGvrkyKSPGwJn+fj0BB:rUsJHO9SXwklT1Q1o8gMrSkyrO02K

Score

10^/10

tofsee persistence trojan

Malware Config

Extracted

Family

tofsee

C2

64.20.54.234

rgtryhbgddtyh.biz

wertdghbyrukl.ch

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

Processes:

lbi.exelbi.exe

pid process

532 lbi.exe
5060 lbi.exe

pid	process
532	lbi.exe
5060	lbi.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\lbi.exe\" /r"	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exelbi.exelbi.exe

description	pid	process	target process
PID 2644 set thread context of 700	2644	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe
PID 532 set thread context of 5060	532	lbi.exe	lbi.exe
PID 5060 set thread context of 3380	5060	lbi.exe	svchost.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4440 3380 WerFault.exe svchost.exe

pid	pid_target	process	target process
4440	3380	WerFault.exe	svchost.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exelbi.exelbi.exe

description	pid	process	target process
PID 2644 wrote to memory of 700	2644	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe
PID 2644 wrote to memory of 700	2644	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe
PID 2644 wrote to memory of 700	2644	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe
PID 2644 wrote to memory of 700	2644	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe
PID 2644 wrote to memory of 700	2644	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe
PID 2644 wrote to memory of 700	2644	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe
PID 2644 wrote to memory of 700	2644	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe
PID 2644 wrote to memory of 700	2644	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe
PID 700 wrote to memory of 532	700	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	lbi.exe
PID 700 wrote to memory of 532	700	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	lbi.exe
PID 700 wrote to memory of 532	700	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	lbi.exe
PID 532 wrote to memory of 5060	532	lbi.exe	lbi.exe
PID 532 wrote to memory of 5060	532	lbi.exe	lbi.exe
PID 532 wrote to memory of 5060	532	lbi.exe	lbi.exe
PID 532 wrote to memory of 5060	532	lbi.exe	lbi.exe
PID 532 wrote to memory of 5060	532	lbi.exe	lbi.exe
PID 532 wrote to memory of 5060	532	lbi.exe	lbi.exe
PID 532 wrote to memory of 5060	532	lbi.exe	lbi.exe
PID 532 wrote to memory of 5060	532	lbi.exe	lbi.exe
PID 5060 wrote to memory of 3380	5060	lbi.exe	svchost.exe
PID 5060 wrote to memory of 3380	5060	lbi.exe	svchost.exe
PID 5060 wrote to memory of 3380	5060	lbi.exe	svchost.exe
PID 5060 wrote to memory of 3380	5060	lbi.exe	svchost.exe
PID 5060 wrote to memory of 3380	5060	lbi.exe	svchost.exe
PID 700 wrote to memory of 4156	700	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	cmd.exe
PID 700 wrote to memory of 4156	700	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	cmd.exe
PID 700 wrote to memory of 4156	700	2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2644

C:\Users\Admin\AppData\Local\Temp\2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2253c8da99eb1c32dae9568bb749a13f_JaffaCakes118.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:700

C:\Users\Admin\lbi.exe
"C:\Users\Admin\lbi.exe" /r
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:532

C:\Users\Admin\lbi.exe
"C:\Users\Admin\lbi.exe" /r
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5060

C:\Windows\SysWOW64\svchost.exe
svchost.exe
5⤵
PID:3380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3380 -s 332
6⤵
- Program crash
PID:4440

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\3482.bat" "
3⤵
PID:4156

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3380 -ip 3380
1⤵
PID:2516

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\3482.bat

Filesize
117B

MD5
31241121304eb0a316d4bee94941747b

SHA1
104b63fa808538dd99b93e34d0db43f79510783d

SHA256
e3e85a53c7fb0958ca30422898cdad65603c1cc4b26c1f077950c2a5b7521d54

SHA512
a7341bd8c745372072b7eda8d5ba15b1f16e7d5ea0665d104643b466438d17fd99e15747e5ec9f74296b30c634e8ab2c45779cd4b10b3c44f49a862258e74793

Download Submit
C:\Users\Admin\lbi.exe

Filesize
98KB

MD5
2253c8da99eb1c32dae9568bb749a13f

SHA1
c073f6de200f85d652e6bd2eb8d58bdd94ccdc8d

SHA256
a425dd275e1b06734e737093123eae3a7d59a1e8449e789cd2d5c928640bcaa7

SHA512
27e3973171ee5ff055add2009825adc68246c08db7b162de6473d8bac9cd2d3fd0b3a7493cc080580bad6fa12650db026e476d1e76a5ee9680265f44d885107d

Download Submit
memory/700-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/700-2-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/700-4-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/700-24-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3380-19-0x0000000000D80000-0x0000000000D90000-memory.dmp

Filesize
64KB

Download
memory/3380-14-0x0000000000D80000-0x0000000000D90000-memory.dmp

Filesize
64KB

Download
memory/3380-28-0x0000000000D80000-0x0000000000D90000-memory.dmp

Filesize
64KB

Download
memory/3380-29-0x0000000002F00000-0x0000000002F01000-memory.dmp

Filesize
4KB

Download
memory/3380-30-0x0000000000D80000-0x0000000000D90000-memory.dmp

Filesize
64KB

Download
memory/3380-31-0x0000000000D80000-0x0000000000D90000-memory.dmp

Filesize
64KB

Download
memory/5060-13-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads