d6c7416582172b48537000e0f604ad4836c2298130ce61ee64187d2e5659bdf7

General

Target

file.exe
Size

380KB
MD5

bbd74fe84f0cd1c6a490d33ccd2d5588
SHA1

7232328b8e24ec0d5ce5e29ad446a5150534b771
SHA256

d6c7416582172b48537000e0f604ad4836c2298130ce61ee64187d2e5659bdf7
SHA512

0402625cdd798cb36eaf4c3772921c5e372a21f7b7234a2811a64275ac6acc63ec1245d4270346a316a542d6f18223959f1b66ee96d053ec8259572263bd13b6
SSDEEP

6144:K/QiQXCA6m+ksmpk3U9jW1U4P9bBiQtCsZ/+/imJIGh7bc92xa+5o1WUK0h06PYA:yQi3Ap6m6URA3PhBtthtE/E9y5uVPYgV

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1528	file.tmp

Loads dropped DLL 4 IoCs

pid	Process
1740	file.exe
1528	file.tmp
1528	file.tmp
1528	file.tmp

Modifies system certificate store 2 TTPs 2 IoCs

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436	file.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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	file.tmp

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 1528	1740	file.exe	27
PID 1740 wrote to memory of 1528	1740	file.exe	27
PID 1740 wrote to memory of 1528	1740	file.exe	27
PID 1740 wrote to memory of 1528	1740	file.exe	27
PID 1740 wrote to memory of 1528	1740	file.exe	27
PID 1740 wrote to memory of 1528	1740	file.exe	27
PID 1740 wrote to memory of 1528	1740	file.exe	27

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Users\Admin\AppData\Local\Temp\is-HCTB4.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-HCTB4.tmp\file.tmp" /SL5="$70124,138982,55296,C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Modifies system certificate store
  PID:1528

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\is-HCTB4.tmp\file.tmp

Filesize
693KB

MD5
a926ae0ea031d6db49d5d679003ef95c

SHA1
03657bd9d3de4c69f8a30aab28eceaced746c68b

SHA256
1ec67071cc0dfea4a41830ef4982f42d6e42d831477d1e1dcadd6d13ab88bb8c

SHA512
5bf58812bf5bdbb6ce94949b58d2b8d3149a1d8a5457eb6c492c77fc51dbbd3ce2780133afd8276481a6c7abb683cee5a41dc262bd98164713691b37144726c2

Download Submit
\Users\Admin\AppData\Local\Temp\is-HCTB4.tmp\file.tmp

Filesize
693KB

MD5
a926ae0ea031d6db49d5d679003ef95c

SHA1
03657bd9d3de4c69f8a30aab28eceaced746c68b

SHA256
1ec67071cc0dfea4a41830ef4982f42d6e42d831477d1e1dcadd6d13ab88bb8c

SHA512
5bf58812bf5bdbb6ce94949b58d2b8d3149a1d8a5457eb6c492c77fc51dbbd3ce2780133afd8276481a6c7abb683cee5a41dc262bd98164713691b37144726c2

Download Submit
\Users\Admin\AppData\Local\Temp\is-L26K5.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-L26K5.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-L26K5.tmp\idp.dll

Filesize
216KB

MD5
8f995688085bced38ba7795f60a5e1d3

SHA1
5b1ad67a149c05c50d6e388527af5c8a0af4343a

SHA256
203d7b61eac96de865ab3b586160e72c78d93ab5532b13d50ef27174126fd006

SHA512
043d41947ab69fc9297dcb5ad238acc2c35250d1172869945ed1a56894c10f93855f0210cbca41ceee9efb55fd56a35a4ec03c77e252409edc64bfb5fb821c35

Download Submit
memory/1528-68-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1528-90-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/1740-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1740-92-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

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Analysis

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