e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc

Analysis

max time kernel
164s
max time network
175s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2022 10:14

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General

Target

e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe
Size

17KB
MD5

70bc7465bca83546f84e42f9b6609fe0
SHA1

7d29645c17348a14c2b4367b375b61a29e25e52a
SHA256

e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc
SHA512

be34ef94796a2e1eef27ba48af40790f73d58aa999ed4a986f961ec7dad403593e25a31639e12b726b59bfdc100838e6cc73e7ca09972f9e3db0f8555e941213
SSDEEP

384:224bhc6Q1NFMJ70QHgZlOADKni0nhftDZnxRq4BUC2UVQu:llLF070Q8IniQlDRzq6UC2Vu

Score

8^/10

persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\explorer\run	ishost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\ishost.exe = "ishost.exe"	ishost.exe

Executes dropped EXE 2 IoCs

pid	Process
3324	ishost.exe
5044	ismini.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ishost.exe	e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe
File opened for modification	C:\Windows\SysWOW64\ishost.exe	e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe
File created	C:\Windows\SysWOW64\ismini.exe	ishost.exe
File created	C:\Windows\SysWOW64\components\flx0.dll	ishost.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1968	e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe
1968	e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe
3324	ishost.exe
3324	ishost.exe
3324	ishost.exe
3324	ishost.exe
5044	ismini.exe
5044	ismini.exe
3324	ishost.exe
3324	ishost.exe
5044	ismini.exe
5044	ismini.exe
3324	ishost.exe
3324	ishost.exe
5044	ismini.exe
5044	ismini.exe
3324	ishost.exe
3324	ishost.exe
5044	ismini.exe
5044	ismini.exe
3324	ishost.exe
3324	ishost.exe
3324	ishost.exe
3324	ishost.exe
5044	ismini.exe
5044	ismini.exe
3324	ishost.exe
3324	ishost.exe
5044	ismini.exe
5044	ismini.exe
3324	ishost.exe
3324	ishost.exe
5044	ismini.exe
5044	ismini.exe
3324	ishost.exe
3324	ishost.exe
3324	ishost.exe
3324	ishost.exe
5044	ismini.exe
5044	ismini.exe
3324	ishost.exe
3324	ishost.exe
5044	ismini.exe
5044	ismini.exe
3324	ishost.exe
3324	ishost.exe
5044	ismini.exe
5044	ismini.exe
3324	ishost.exe
3324	ishost.exe
3324	ishost.exe
5044	ismini.exe
5044	ismini.exe
3324	ishost.exe
3324	ishost.exe
3324	ishost.exe
5044	ismini.exe
5044	ismini.exe
3324	ishost.exe
3324	ishost.exe
5044	ismini.exe
5044	ismini.exe
3324	ishost.exe
3324	ishost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1968	e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 3324	1968	e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe	81
PID 1968 wrote to memory of 3324	1968	e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe	81
PID 1968 wrote to memory of 3324	1968	e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe	81
PID 3324 wrote to memory of 5044	3324	ishost.exe	82
PID 3324 wrote to memory of 5044	3324	ishost.exe	82
PID 3324 wrote to memory of 5044	3324	ishost.exe	82
PID 1968 wrote to memory of 2136	1968	e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe	83
PID 1968 wrote to memory of 2136	1968	e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe	83
PID 1968 wrote to memory of 2136	1968	e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe	83

C:\Users\Admin\AppData\Local\Temp\e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe
"C:\Users\Admin\AppData\Local\Temp\e8158445103eee8f4fdbd5133ce1a59076f82ecb2f9fadc7a02c4cc958a205bc.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\ishost.exe
  C:\Windows\system32\ishost.exe
  2⤵
  - Adds policy Run key to start application
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3324
- - C:\Windows\SysWOW64\ismini.exe
    C:\Windows\system32\ismini.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    PID:5044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\E81584~1.EXE > nul
  2⤵
  PID:2136

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\ishost.exe

Filesize
33KB

MD5
0d953795d16d21afbef4eaeeb1e912bc

SHA1
50ec9290f4e96f1903b03e93dd471538ac0cee48

SHA256
7fd7167030f22a725f86f7a382d925ebb00d1281c4499f3e1de58758f8d7aa22

SHA512
71d7b0bd69299f5e264afd7110511d133cb56af0cd5dc12939be61dc74591cf367549a2de700a101acddd4f85aad389a5d20180dcb8b5fed129f8dd7bbf8e52b

Download Submit
C:\Windows\SysWOW64\ishost.exe

Filesize
33KB

MD5
0d953795d16d21afbef4eaeeb1e912bc

SHA1
50ec9290f4e96f1903b03e93dd471538ac0cee48

SHA256
7fd7167030f22a725f86f7a382d925ebb00d1281c4499f3e1de58758f8d7aa22

SHA512
71d7b0bd69299f5e264afd7110511d133cb56af0cd5dc12939be61dc74591cf367549a2de700a101acddd4f85aad389a5d20180dcb8b5fed129f8dd7bbf8e52b

Download Submit
C:\Windows\SysWOW64\ismini.exe

Filesize
4KB

MD5
1643c0c6446c19b0a4fa925953b23564

SHA1
e31991c436cdfca8937ca27c28d9bd9e830aa0bb

SHA256
649c2ad2d97bbe4a6017152aa8011673065000a12c2a32ff99b49cd857ae7885

SHA512
095da571869d8b85407dbce52ccff05e8dd058d6be8d33b0d0f6c36c7eb80fcfc58d96a749222b8766e84e3b41aeefa8be1c755ff040e79ca7834a3d16003527

Download Submit
C:\Windows\SysWOW64\ismini.exe

Filesize
4KB

MD5
1643c0c6446c19b0a4fa925953b23564

SHA1
e31991c436cdfca8937ca27c28d9bd9e830aa0bb

SHA256
649c2ad2d97bbe4a6017152aa8011673065000a12c2a32ff99b49cd857ae7885

SHA512
095da571869d8b85407dbce52ccff05e8dd058d6be8d33b0d0f6c36c7eb80fcfc58d96a749222b8766e84e3b41aeefa8be1c755ff040e79ca7834a3d16003527

Download Submit