f0fca575c4c81ba505a18cbc8053618129452197f6dec45acad2e68a6d03fe99

General

Target

b5f0556b6431a39b84ac1ae70a632f6f.exe
Size

907KB
MD5

b5f0556b6431a39b84ac1ae70a632f6f
SHA1

dd8af60037af8046319d9f38344c22c0a7eea223
SHA256

f0fca575c4c81ba505a18cbc8053618129452197f6dec45acad2e68a6d03fe99
SHA512

9a7d3ded3b3d6c1f5b2df845693879462681ba72414352731f08d4675d5482692b1861b31273d62c997dc5d087978525248eba62d37e045da5c535f8254af411
SSDEEP

24576:mKErA+ZUioNk3LA0yGevNEP9VA7NZa/ZS1:mvA+HgKMSevN0A3gS

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2500	b5f0556b6431a39b84ac1ae70a632f6f.exe

Executes dropped EXE 1 IoCs

pid	Process
2500	b5f0556b6431a39b84ac1ae70a632f6f.exe

Loads dropped DLL 1 IoCs

pid	Process
2332	b5f0556b6431a39b84ac1ae70a632f6f.exe

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

Web Service

T1102

flow	ioc
3	pastebin.com
5	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	b5f0556b6431a39b84ac1ae70a632f6f.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	b5f0556b6431a39b84ac1ae70a632f6f.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	b5f0556b6431a39b84ac1ae70a632f6f.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2332	b5f0556b6431a39b84ac1ae70a632f6f.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2332	b5f0556b6431a39b84ac1ae70a632f6f.exe
2500	b5f0556b6431a39b84ac1ae70a632f6f.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 2500	2332	b5f0556b6431a39b84ac1ae70a632f6f.exe	28
PID 2332 wrote to memory of 2500	2332	b5f0556b6431a39b84ac1ae70a632f6f.exe	28
PID 2332 wrote to memory of 2500	2332	b5f0556b6431a39b84ac1ae70a632f6f.exe	28
PID 2332 wrote to memory of 2500	2332	b5f0556b6431a39b84ac1ae70a632f6f.exe	28

C:\Users\Admin\AppData\Local\Temp\b5f0556b6431a39b84ac1ae70a632f6f.exe
"C:\Users\Admin\AppData\Local\Temp\b5f0556b6431a39b84ac1ae70a632f6f.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Users\Admin\AppData\Local\Temp\b5f0556b6431a39b84ac1ae70a632f6f.exe
  C:\Users\Admin\AppData\Local\Temp\b5f0556b6431a39b84ac1ae70a632f6f.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system certificate store
  - Suspicious use of UnmapMainImage
  PID:2500

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\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
67KB

MD5
753df6889fd7410a2e9fe333da83a429

SHA1
3c425f16e8267186061dd48ac1c77c122962456e

SHA256
b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78

SHA512
9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarBC92.tmp

Filesize
175KB

MD5
dd73cead4b93366cf3465c8cd32e2796

SHA1
74546226dfe9ceb8184651e920d1dbfb432b314e

SHA256
a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

SHA512
ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

Download Submit
C:\Users\Admin\AppData\Local\Temp\b5f0556b6431a39b84ac1ae70a632f6f.exe

Filesize
64KB

MD5
9bdc0563ff8fc00ad4e4641274bf37ec

SHA1
c0635bd8bf8cfefc504cdb2989069ccd05c28069

SHA256
44edcf360d9f4ded2f827750378af0f453dc313087e64271b557f3dd6cc5aa32

SHA512
0a9e6f026c32859242385ab94603c34a4669f2037dc5c04cd605fcef93de0f61fbc1f40e7fe881f6e0b1eff2a87afc6dd8df3a3a6157ff8eceffbdb8176043d5

Download Submit
\Users\Admin\AppData\Local\Temp\b5f0556b6431a39b84ac1ae70a632f6f.exe

Filesize
907KB

MD5
58b94eb400b7f9c4dcfac66ed4667e07

SHA1
d89462a6953f778a69a694d7716ff193a6fb2852

SHA256
64c48626c2ab8ef353f876f6f77de0f371a63fec72e47db4fdd04075065bb4f3

SHA512
b2ec0b5eb375b6d50174e62d55ade1fcb256a0153aca789644d24f4737d35a9d8091b54b37fa599da29462c746fcbd2ab3eddcf7ea11e09a9d7c6d0c7641e106

Download Submit
memory/2332-13-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2332-0-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2332-1-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2332-3-0x00000000002F0000-0x00000000003D8000-memory.dmp

Filesize
928KB

Download
memory/2500-16-0x00000000014F0000-0x00000000015D8000-memory.dmp

Filesize
928KB

Download
memory/2500-18-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2500-22-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2500-28-0x0000000002FA0000-0x000000000305B000-memory.dmp

Filesize
748KB

Download
memory/2500-80-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2500-83-0x000000000DB70000-0x000000000DC08000-memory.dmp

Filesize
608KB

Download

Analysis

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