48b20f1e99e4ebaa4e95fd782b49d55c7fa4c1bf082b67a9e12ab358bdb35a0c

General

Target

3b66129ea2678910884f8b2c9899f49c.exe
Size

385KB
MD5

3b66129ea2678910884f8b2c9899f49c
SHA1

d98025c8c52151aa9c0789aaaece5ffbf037f1da
SHA256

48b20f1e99e4ebaa4e95fd782b49d55c7fa4c1bf082b67a9e12ab358bdb35a0c
SHA512

fc982dd6cf7afbd146619155369ef53ddac38e76d8b8dc8f8d11475c890892651041b2f677e59497305a900460af723995f509b0a3a7828cab657fc2fad6bd92
SSDEEP

12288:9MEJQ0FWN9AZvYnCkLF16/Tl/R/jTK15ZMB:9c0Fw9ARwmHfKjZMB

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1688	3b66129ea2678910884f8b2c9899f49c.exe

Executes dropped EXE 1 IoCs

pid	Process
1688	3b66129ea2678910884f8b2c9899f49c.exe

Loads dropped DLL 1 IoCs

pid	Process
3060	3b66129ea2678910884f8b2c9899f49c.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Modifies system certificate store 2 TTPs 3 IoCs

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474	3b66129ea2678910884f8b2c9899f49c.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	3b66129ea2678910884f8b2c9899f49c.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	3b66129ea2678910884f8b2c9899f49c.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3060	3b66129ea2678910884f8b2c9899f49c.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
3060	3b66129ea2678910884f8b2c9899f49c.exe
1688	3b66129ea2678910884f8b2c9899f49c.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 1688	3060	3b66129ea2678910884f8b2c9899f49c.exe	28
PID 3060 wrote to memory of 1688	3060	3b66129ea2678910884f8b2c9899f49c.exe	28
PID 3060 wrote to memory of 1688	3060	3b66129ea2678910884f8b2c9899f49c.exe	28
PID 3060 wrote to memory of 1688	3060	3b66129ea2678910884f8b2c9899f49c.exe	28

C:\Users\Admin\AppData\Local\Temp\3b66129ea2678910884f8b2c9899f49c.exe
"C:\Users\Admin\AppData\Local\Temp\3b66129ea2678910884f8b2c9899f49c.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Users\Admin\AppData\Local\Temp\3b66129ea2678910884f8b2c9899f49c.exe
  C:\Users\Admin\AppData\Local\Temp\3b66129ea2678910884f8b2c9899f49c.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system certificate store
  - Suspicious use of UnmapMainImage
  PID:1688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab7773.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar77F3.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
\Users\Admin\AppData\Local\Temp\3b66129ea2678910884f8b2c9899f49c.exe

Filesize
385KB

MD5
2b7c508b30559f7d8f32a8f56beab1c2

SHA1
36e9be4c430fd7a9ac6235754c009886e6aa9444

SHA256
1e34be45e58ea2326fb97bfc6a017583a3ec4b2ccaa65d943280016c5a63c41b

SHA512
d09763c13d976bd3ec4efb3f0bf96918a0b0edbb51faf0523003426f60514c74323451fa8895263e0154bc18ec115fb090ced0530981c987207aa43da1ac7c61

Download Submit
memory/1688-16-0x0000000000190000-0x00000000001F6000-memory.dmp

Filesize
408KB

Download
memory/1688-22-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1688-25-0x0000000001470000-0x00000000014CF000-memory.dmp

Filesize
380KB

Download
memory/1688-76-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1688-81-0x0000000007660000-0x000000000769C000-memory.dmp

Filesize
240KB

Download
memory/1688-82-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3060-0-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/3060-14-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/3060-12-0x0000000000290000-0x00000000002F6000-memory.dmp

Filesize
408KB

Download
memory/3060-3-0x0000000000190000-0x00000000001F6000-memory.dmp

Filesize
408KB

Download
memory/3060-1-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download

Analysis

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