tofsee | 27a96d1d3be59518333398b4796e733ea886a39d13b340916016a1a265982777

General

Target

1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe
Size

133KB
MD5

1783e2beef4c8cbd1b7887f2804b1698
SHA1

4ed87a4c967d82e914e24fc25c868572eb2263f9
SHA256

27a96d1d3be59518333398b4796e733ea886a39d13b340916016a1a265982777
SHA512

0dc1d3c1a516a85258dbb1815bb188f579e3c088b22e69c969e14baa024bf70b0e3ef8a443269f67d7a87e1760258ca4694e569fbe5e38bde0f081861e3f8d22
SSDEEP

1536:Q74zUiEiGmPcf25I6hbCadtdAQAbPkAPlDTMhYzyvfQLmPtnTlbU:QpiaV+5HvtunPkA9TCYzyvfystnW

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:

1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

Processes:

iqlf.exeiqlf.exe

pid process

3932 iqlf.exe
4636 iqlf.exe

pid	process
3932	iqlf.exe
4636	iqlf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\iqlf.exe\" /r"	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exeiqlf.exeiqlf.exe

description	pid	process	target process
PID 2364 set thread context of 3712	2364	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe
PID 3932 set thread context of 4636	3932	iqlf.exe	iqlf.exe
PID 4636 set thread context of 4880	4636	iqlf.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

2000 4880 WerFault.exe svchost.exe

pid	pid_target	process	target process
2000	4880	WerFault.exe	svchost.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exeiqlf.exeiqlf.exe

description	pid	process	target process
PID 2364 wrote to memory of 3712	2364	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe
PID 2364 wrote to memory of 3712	2364	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe
PID 2364 wrote to memory of 3712	2364	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe
PID 2364 wrote to memory of 3712	2364	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe
PID 2364 wrote to memory of 3712	2364	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe
PID 2364 wrote to memory of 3712	2364	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe
PID 2364 wrote to memory of 3712	2364	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe
PID 2364 wrote to memory of 3712	2364	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe
PID 3712 wrote to memory of 3932	3712	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	iqlf.exe
PID 3712 wrote to memory of 3932	3712	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	iqlf.exe
PID 3712 wrote to memory of 3932	3712	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	iqlf.exe
PID 3932 wrote to memory of 4636	3932	iqlf.exe	iqlf.exe
PID 3932 wrote to memory of 4636	3932	iqlf.exe	iqlf.exe
PID 3932 wrote to memory of 4636	3932	iqlf.exe	iqlf.exe
PID 3932 wrote to memory of 4636	3932	iqlf.exe	iqlf.exe
PID 3932 wrote to memory of 4636	3932	iqlf.exe	iqlf.exe
PID 3932 wrote to memory of 4636	3932	iqlf.exe	iqlf.exe
PID 3932 wrote to memory of 4636	3932	iqlf.exe	iqlf.exe
PID 3932 wrote to memory of 4636	3932	iqlf.exe	iqlf.exe
PID 4636 wrote to memory of 4880	4636	iqlf.exe	svchost.exe
PID 4636 wrote to memory of 4880	4636	iqlf.exe	svchost.exe
PID 4636 wrote to memory of 4880	4636	iqlf.exe	svchost.exe
PID 4636 wrote to memory of 4880	4636	iqlf.exe	svchost.exe
PID 4636 wrote to memory of 4880	4636	iqlf.exe	svchost.exe
PID 3712 wrote to memory of 4560	3712	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	cmd.exe
PID 3712 wrote to memory of 4560	3712	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	cmd.exe
PID 3712 wrote to memory of 4560	3712	1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2364

C:\Users\Admin\AppData\Local\Temp\1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1783e2beef4c8cbd1b7887f2804b1698_JaffaCakes118.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3712

C:\Users\Admin\iqlf.exe
"C:\Users\Admin\iqlf.exe" /r
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3932

C:\Users\Admin\iqlf.exe
"C:\Users\Admin\iqlf.exe" /r
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4636

C:\Windows\SysWOW64\svchost.exe
svchost.exe
5⤵
PID:4880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4880 -s 92
6⤵
- Program crash
PID:2000

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5032.bat" "
3⤵
PID:4560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4880 -ip 4880
1⤵
PID:4844

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\5032.bat
Filesize
117B

MD5
8454e9110c523cdca74ff3804cd15100

SHA1
92a7a9a7708945cca418eabdd735ba9593eba2c4

SHA256
a94c9f8d719169f6335dbe9f5fc1b8b1e9c0b7b0d202f79489fa64833723bb4a

SHA512
2c69430cab94afdccf0400f4336719a848f5c5e91de90b28aceacd92f56ce03dbad5bbf7196a186ae5df7a54cc72bad880781b28f2e5806085dbde89d0001c1d

Download Submit
C:\Users\Admin\iqlf.exe
Filesize
133KB

MD5
1783e2beef4c8cbd1b7887f2804b1698

SHA1
4ed87a4c967d82e914e24fc25c868572eb2263f9

SHA256
27a96d1d3be59518333398b4796e733ea886a39d13b340916016a1a265982777

SHA512
0dc1d3c1a516a85258dbb1815bb188f579e3c088b22e69c969e14baa024bf70b0e3ef8a443269f67d7a87e1760258ca4694e569fbe5e38bde0f081861e3f8d22

Download Submit
memory/3712-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3712-2-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3712-4-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3712-23-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4880-13-0x00000000009D0000-0x00000000009E0000-memory.dmp

Filesize
64KB

Download
memory/4880-18-0x00000000009D0000-0x00000000009E0000-memory.dmp

Filesize
64KB

Download
memory/4880-27-0x00000000009D0000-0x00000000009E0000-memory.dmp

Filesize
64KB

Download
memory/4880-28-0x0000000002B50000-0x0000000002B51000-memory.dmp

Filesize
4KB

Download
memory/4880-29-0x00000000009D0000-0x00000000009E0000-memory.dmp

Filesize
64KB

Download
memory/4880-30-0x00000000009D0000-0x00000000009E0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads