emotet | 957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092

Analysis

max time kernel
141s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
24-07-2022 22:11

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General

Target

957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092.exe
Size

108KB
MD5

8f239042985d8da29817e59008e6a544
SHA1

f2b0ce7f8898a0b564fb1e5931263324564d04b7
SHA256

957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092
SHA512

a3f71811569e40bd165240a89d3f3f9b228dae59a0692629698110a6662fcc26a36cb47a5eb01fe651c54f6886214316d3a0c0d1ea30d7d5428c699ff84d92cb

Score

10^/10

emotet banker trojan

Malware Config

Signatures

Emotet
Emotet is a trojan that is primarily spread through spam emails.
trojan banker emotet

Drops file in System32 directory 4 IoCs

Processes:

commentribbon.exe

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

commentribbon.exe

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

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

commentribbon.exe

pid	process
988	commentribbon.exe
988	commentribbon.exe
988	commentribbon.exe
988	commentribbon.exe
988	commentribbon.exe
988	commentribbon.exe
988	commentribbon.exe
988	commentribbon.exe
988	commentribbon.exe
988	commentribbon.exe
988	commentribbon.exe
988	commentribbon.exe
988	commentribbon.exe
988	commentribbon.exe
988	commentribbon.exe
988	commentribbon.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092.exe

pid process

3136 957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092.exe

pid	process
3136	957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092.execommentribbon.exe

description	pid	process	target process
PID 1516 wrote to memory of 3136	1516	957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092.exe	957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092.exe
PID 1516 wrote to memory of 3136	1516	957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092.exe	957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092.exe
PID 1516 wrote to memory of 3136	1516	957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092.exe	957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092.exe
PID 1488 wrote to memory of 988	1488	commentribbon.exe	commentribbon.exe
PID 1488 wrote to memory of 988	1488	commentribbon.exe	commentribbon.exe
PID 1488 wrote to memory of 988	1488	commentribbon.exe	commentribbon.exe

C:\Users\Admin\AppData\Local\Temp\957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092.exe
"C:\Users\Admin\AppData\Local\Temp\957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1516

C:\Users\Admin\AppData\Local\Temp\957c137897960cb39605fee65c5edbd57c0f94ed39a77ae219abef1deef0d092.exe
--5ddbd1a8
2⤵
- Suspicious behavior: RenamesItself
PID:3136

C:\Windows\SysWOW64\commentribbon.exe
"C:\Windows\SysWOW64\commentribbon.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1488

C:\Windows\SysWOW64\commentribbon.exe
--acf8ce4b
2⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:988

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/988-135-0x0000000000000000-mapping.dmp

Download
memory/988-137-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/988-138-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1516-130-0x0000000002160000-0x0000000002171000-memory.dmp

Filesize
68KB

Download
memory/1516-133-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1516-132-0x0000000002160000-0x0000000002171000-memory.dmp

Filesize
68KB

Download
memory/3136-131-0x0000000000000000-mapping.dmp

Download
memory/3136-134-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3136-136-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download