2831c2d0d45e247af09545f3fd44ea29dc7599d4cec272097f0d1ffd27d959e8

General

Target

a2c3d3fd4ef0994f3d39e8f4889e90ab.exe
Size

907KB
MD5

a2c3d3fd4ef0994f3d39e8f4889e90ab
SHA1

972c39ce0d7d134fe51301409a31224d8c4a1f92
SHA256

2831c2d0d45e247af09545f3fd44ea29dc7599d4cec272097f0d1ffd27d959e8
SHA512

555445de39bdf3882f6cc2c4618e4e32d1ea753e5053027915cbfa70a27f0140fb8acdaf2a8f6051e100d6f54576e1acdf4cbfad386ee8c84dd54ff2ac90ad6b
SSDEEP

12288:39TqD5cE9eyigKWAe+5BkogcJTLUQ/mDq4BNRxmo2kzjVDa/ZS1:82ytKln+anUQX4HRwtwa/ZS1

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2724	a2c3d3fd4ef0994f3d39e8f4889e90ab.exe

Executes dropped EXE 1 IoCs

pid	Process
2724	a2c3d3fd4ef0994f3d39e8f4889e90ab.exe

Loads dropped DLL 1 IoCs

pid	Process
1688	a2c3d3fd4ef0994f3d39e8f4889e90ab.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
4	pastebin.com
3	pastebin.com

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	a2c3d3fd4ef0994f3d39e8f4889e90ab.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	a2c3d3fd4ef0994f3d39e8f4889e90ab.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	a2c3d3fd4ef0994f3d39e8f4889e90ab.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1688	a2c3d3fd4ef0994f3d39e8f4889e90ab.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1688	a2c3d3fd4ef0994f3d39e8f4889e90ab.exe
2724	a2c3d3fd4ef0994f3d39e8f4889e90ab.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 2724	1688	a2c3d3fd4ef0994f3d39e8f4889e90ab.exe	29
PID 1688 wrote to memory of 2724	1688	a2c3d3fd4ef0994f3d39e8f4889e90ab.exe	29
PID 1688 wrote to memory of 2724	1688	a2c3d3fd4ef0994f3d39e8f4889e90ab.exe	29
PID 1688 wrote to memory of 2724	1688	a2c3d3fd4ef0994f3d39e8f4889e90ab.exe	29

C:\Users\Admin\AppData\Local\Temp\a2c3d3fd4ef0994f3d39e8f4889e90ab.exe
"C:\Users\Admin\AppData\Local\Temp\a2c3d3fd4ef0994f3d39e8f4889e90ab.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Users\Admin\AppData\Local\Temp\a2c3d3fd4ef0994f3d39e8f4889e90ab.exe
  C:\Users\Admin\AppData\Local\Temp\a2c3d3fd4ef0994f3d39e8f4889e90ab.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system certificate store
  - Suspicious use of UnmapMainImage
  PID:2724

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\Cab16DD.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar16EF.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
\Users\Admin\AppData\Local\Temp\a2c3d3fd4ef0994f3d39e8f4889e90ab.exe

Filesize
907KB

MD5
7af50dedcc77e7b28626a6e17545e75d

SHA1
40076a67ed39fa45cfac94cb756091fbcc9cdbd6

SHA256
a8d1c44fea2334f2ddd279bd2b0741da6134fc1880fb81e142670eec9478c05b

SHA512
6ff3837973a7d8165615f5a7c913a3aa16fe309ccf50e0b48e9e51f262a15a6741659d0bbc6598af8168ced10e4bcb9813fc4faa3ecf5832c747aaf3a7f4adc7

Download Submit
memory/1688-14-0x0000000003290000-0x0000000003378000-memory.dmp

Filesize
928KB

Download
memory/1688-13-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/1688-0-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1688-3-0x0000000000270000-0x0000000000358000-memory.dmp

Filesize
928KB

Download
memory/1688-1-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2724-17-0x00000000014F0000-0x00000000015D8000-memory.dmp

Filesize
928KB

Download
memory/2724-19-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2724-23-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2724-27-0x0000000002F80000-0x000000000303B000-memory.dmp

Filesize
748KB

Download
memory/2724-77-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2724-83-0x000000000D990000-0x000000000DA28000-memory.dmp

Filesize
608KB

Download

Analysis

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