ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64

Analysis

max time kernel
137s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2023 18:09

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General

Target

ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64.exe
Size

222KB
MD5

2aee353fdf49daa4690ad37e87290bea
SHA1

aeae9638f9dcc4ea7e792172d4a150e79f21bed2
SHA256

ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64
SHA512

dd6d7497242df40030620a9f34212d927faca2280f3d8b79552a35607fd1259b1d69064c0f4e5b707efaaa7a80ddcb1df4a0a901a6490eeaafe60c877e3e48ae
SSDEEP

6144:6BROOztLRuwc5xRRBJ/1CTlJzrhsHY1NEM9:6Btix//0T/vhlEM9

Score

5^/10

Malware Config

Signatures

Drops file in System32 directory 4 IoCs

Processes:

issindexer.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	issindexer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	issindexer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	issindexer.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	issindexer.exe

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 3 IoCs

Processes:

issindexer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	issindexer.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	issindexer.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	issindexer.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

issindexer.exe

pid	process
2768	issindexer.exe
2768	issindexer.exe
2768	issindexer.exe
2768	issindexer.exe
2768	issindexer.exe
2768	issindexer.exe
2768	issindexer.exe
2768	issindexer.exe
2768	issindexer.exe
2768	issindexer.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64.exe

pid process

2296 ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64.exe

pid	process
2296	ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64.exeissindexer.exe

description	pid	process	target process
PID 4276 wrote to memory of 2296	4276	ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64.exe	ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64.exe
PID 4276 wrote to memory of 2296	4276	ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64.exe	ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64.exe
PID 4276 wrote to memory of 2296	4276	ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64.exe	ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64.exe
PID 5040 wrote to memory of 2768	5040	issindexer.exe	issindexer.exe
PID 5040 wrote to memory of 2768	5040	issindexer.exe	issindexer.exe
PID 5040 wrote to memory of 2768	5040	issindexer.exe	issindexer.exe

C:\Users\Admin\AppData\Local\Temp\ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64.exe
"C:\Users\Admin\AppData\Local\Temp\ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4276

C:\Users\Admin\AppData\Local\Temp\ce4a28b522bdc0bdf82a7e99d51226167816897d54184d92a5625baea9032b64.exe
--733f8994
2⤵
- Suspicious behavior: RenamesItself
PID:2296

C:\Windows\SysWOW64\issindexer.exe
"C:\Windows\SysWOW64\issindexer.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5040

C:\Windows\SysWOW64\issindexer.exe
--f5c3b5a8
2⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:2768

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2296-138-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2296-135-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2296-132-0x0000000000000000-mapping.dmp

Download
memory/2296-142-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2768-140-0x0000000000000000-mapping.dmp

Download
memory/2768-143-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2768-144-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/4276-133-0x00000000005E0000-0x00000000005FB000-memory.dmp

Filesize
108KB

Download
memory/4276-134-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/4276-136-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/5040-137-0x00000000006A0000-0x00000000006BB000-memory.dmp

Filesize
108KB

Download
memory/5040-139-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/5040-141-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download