tofsee | 379955aa858a8443401e40f6576aa54c9243fe38d4dd761f41ab0b5847c2a6fc

General

Target

f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe
Size

10.3MB
MD5

f57f119b34f2ff7f7770200b1eba0e30
SHA1

ed3398edb4b2dd9fcf7130f573b216c88e038ad9
SHA256

379955aa858a8443401e40f6576aa54c9243fe38d4dd761f41ab0b5847c2a6fc
SHA512

31e75d262af0fc371774bd59287afdb7727ddff3cde18da1df4c0cceca86a23cd0bec60ba3b1c178ae9efea6f8710a729e6da993a30e6d6cb3d1e36a0a561b0a
SSDEEP

49152:i1yvllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll:iA

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2616 netsh.exe

pid	process
2616	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\zzzqhnfn\ImagePath = "C:\\Windows\\SysWOW64\\zzzqhnfn\\qlphxiki.exe"	svchost.exe

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:

f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

5940 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

qlphxiki.exe

pid process

2224 qlphxiki.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

qlphxiki.exe

description pid process target process

PID 2224 set thread context of 5940 2224 qlphxiki.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

4572 sc.exe
5136 sc.exe
5440 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

3144 2620 WerFault.exe f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe
4956 2224 WerFault.exe qlphxiki.exe

pid	process
5940	svchost.exe

pid	process
2224	qlphxiki.exe

description	pid	process	target process
PID 2224 set thread context of 5940	2224	qlphxiki.exe	svchost.exe

pid	process
4572	sc.exe
5136	sc.exe
5440	sc.exe

pid	pid_target	process	target process
3144	2620	WerFault.exe	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe
4956	2224	WerFault.exe	qlphxiki.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exeqlphxiki.exe

description	pid	process	target process
PID 2620 wrote to memory of 2900	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	cmd.exe
PID 2620 wrote to memory of 2900	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	cmd.exe
PID 2620 wrote to memory of 2900	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	cmd.exe
PID 2620 wrote to memory of 4692	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	cmd.exe
PID 2620 wrote to memory of 4692	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	cmd.exe
PID 2620 wrote to memory of 4692	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	cmd.exe
PID 2620 wrote to memory of 4572	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2620 wrote to memory of 4572	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2620 wrote to memory of 4572	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2620 wrote to memory of 5136	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2620 wrote to memory of 5136	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2620 wrote to memory of 5136	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2620 wrote to memory of 5440	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2620 wrote to memory of 5440	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2620 wrote to memory of 5440	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	sc.exe
PID 2620 wrote to memory of 2616	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	netsh.exe
PID 2620 wrote to memory of 2616	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	netsh.exe
PID 2620 wrote to memory of 2616	2620	f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe	netsh.exe
PID 2224 wrote to memory of 5940	2224	qlphxiki.exe	svchost.exe
PID 2224 wrote to memory of 5940	2224	qlphxiki.exe	svchost.exe
PID 2224 wrote to memory of 5940	2224	qlphxiki.exe	svchost.exe
PID 2224 wrote to memory of 5940	2224	qlphxiki.exe	svchost.exe
PID 2224 wrote to memory of 5940	2224	qlphxiki.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2620

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zzzqhnfn\
2⤵
PID:2900

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qlphxiki.exe" C:\Windows\SysWOW64\zzzqhnfn\
2⤵
PID:4692

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create zzzqhnfn binPath= "C:\Windows\SysWOW64\zzzqhnfn\qlphxiki.exe /d\"C:\Users\Admin\AppData\Local\Temp\f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4572

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description zzzqhnfn "wifi internet conection"
2⤵
- Launches sc.exe
PID:5136

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start zzzqhnfn
2⤵
- Launches sc.exe
PID:5440

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
2⤵
- Modifies Windows Firewall
PID:2616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2620 -s 792
2⤵
- Program crash
PID:3144

C:\Windows\SysWOW64\zzzqhnfn\qlphxiki.exe
C:\Windows\SysWOW64\zzzqhnfn\qlphxiki.exe /d"C:\Users\Admin\AppData\Local\Temp\f57f119b34f2ff7f7770200b1eba0e30_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2224

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:5940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2224 -s 520
2⤵
- Program crash
PID:4956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2620 -ip 2620
1⤵
PID:5324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2224 -ip 2224
1⤵
PID:5984

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3632 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:4160

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\qlphxiki.exe
Filesize
11.8MB

MD5
c12e4e0d3180145043c0b4809d52ba2a

SHA1
3e37f4160b61d2e1f1dc66b4a1e4cea7b1d29e90

SHA256
931cdb58c296028d9084f30ef771f48e017de0e7d55980fa3bfa66591b73fc5a

SHA512
40827dea43d7ce305f609e494b7c4723f72e8c19e1e0aad9a2e53f86da27e1392ff3eaa87bd94bd8cbaf9443e56f9c056cf11997c9426acc078a25ac745d4908

Download Submit
memory/2224-10-0x0000000000C80000-0x0000000000D80000-memory.dmp

Filesize
1024KB

Download
memory/2224-13-0x0000000000400000-0x0000000000C20000-memory.dmp

Filesize
8.1MB

Download
memory/2224-17-0x0000000000400000-0x0000000000C20000-memory.dmp

Filesize
8.1MB

Download
memory/2620-4-0x0000000000400000-0x0000000000C20000-memory.dmp

Filesize
8.1MB

Download
memory/2620-2-0x0000000000DC0000-0x0000000000DD3000-memory.dmp

Filesize
76KB

Download
memory/2620-7-0x0000000000400000-0x0000000000C20000-memory.dmp

Filesize
8.1MB

Download
memory/2620-8-0x0000000000DC0000-0x0000000000DD3000-memory.dmp

Filesize
76KB

Download
memory/2620-1-0x0000000000E10000-0x0000000000F10000-memory.dmp

Filesize
1024KB

Download
memory/5940-16-0x00000000004C0000-0x00000000004D5000-memory.dmp

Filesize
84KB

Download
memory/5940-18-0x00000000004C0000-0x00000000004D5000-memory.dmp

Filesize
84KB

Download
memory/5940-11-0x00000000004C0000-0x00000000004D5000-memory.dmp

Filesize
84KB

Download
memory/5940-19-0x00000000004C0000-0x00000000004D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads