40a8548891ac0905177c1cb17cb962c9f3c6cd11ddaf0aab2d8d3b90b7173451

General

Target

c3103e14c8b67bbffb027a8fb98f3f89.exe
Size

385KB
MD5

c3103e14c8b67bbffb027a8fb98f3f89
SHA1

6411cc55042fe9e43c202505d38f8274db4bf4c6
SHA256

40a8548891ac0905177c1cb17cb962c9f3c6cd11ddaf0aab2d8d3b90b7173451
SHA512

125d2c0a0ad35daa70b0450ac7797fa863495f5e8b48380faf5350ef40d0620a7d26644f80ceeeb133d3d959aff124208b82fff5295497aac75551f82160f8da
SSDEEP

12288:W/CZridTWOBw16ABQWquUrVgJSZ22qNu5BIQBB:RrohwxBQKUBgJSI26uY2B

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2508	c3103e14c8b67bbffb027a8fb98f3f89.exe

Executes dropped EXE 1 IoCs

pid	Process
2508	c3103e14c8b67bbffb027a8fb98f3f89.exe

Loads dropped DLL 1 IoCs

pid	Process
2792	c3103e14c8b67bbffb027a8fb98f3f89.exe

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

Web Service

T1102

flow	ioc
3	pastebin.com
4	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	c3103e14c8b67bbffb027a8fb98f3f89.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	c3103e14c8b67bbffb027a8fb98f3f89.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	c3103e14c8b67bbffb027a8fb98f3f89.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2792	c3103e14c8b67bbffb027a8fb98f3f89.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2792	c3103e14c8b67bbffb027a8fb98f3f89.exe
2508	c3103e14c8b67bbffb027a8fb98f3f89.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 2508	2792	c3103e14c8b67bbffb027a8fb98f3f89.exe	28
PID 2792 wrote to memory of 2508	2792	c3103e14c8b67bbffb027a8fb98f3f89.exe	28
PID 2792 wrote to memory of 2508	2792	c3103e14c8b67bbffb027a8fb98f3f89.exe	28
PID 2792 wrote to memory of 2508	2792	c3103e14c8b67bbffb027a8fb98f3f89.exe	28

C:\Users\Admin\AppData\Local\Temp\c3103e14c8b67bbffb027a8fb98f3f89.exe
"C:\Users\Admin\AppData\Local\Temp\c3103e14c8b67bbffb027a8fb98f3f89.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Users\Admin\AppData\Local\Temp\c3103e14c8b67bbffb027a8fb98f3f89.exe
  C:\Users\Admin\AppData\Local\Temp\c3103e14c8b67bbffb027a8fb98f3f89.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system certificate store
  - Suspicious use of UnmapMainImage
  PID:2508

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\Tar2BC9.tmp

Filesize
175KB

MD5
dd73cead4b93366cf3465c8cd32e2796

SHA1
74546226dfe9ceb8184651e920d1dbfb432b314e

SHA256
a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

SHA512
ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

Download Submit
\Users\Admin\AppData\Local\Temp\c3103e14c8b67bbffb027a8fb98f3f89.exe

Filesize
385KB

MD5
73aceae91eded78000e5f4582f04d67a

SHA1
de372491c8a176f93e945cb4226c858e786e32b4

SHA256
55f7523501eaf41e80b56d59e87882faf4b67deef7d285506fdb5c935371b45f

SHA512
f290789ad72c70c5007224cff31f3f17bedeb485a8f44d71167a8ec8fc977825ab5f1db16d12065288b2149e7ac771c2066063334565b4ff57072a0d81f3273e

Download Submit
memory/2508-17-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2508-19-0x0000000001470000-0x00000000014D6000-memory.dmp

Filesize
408KB

Download
memory/2508-23-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2508-29-0x00000000014E0000-0x000000000153F000-memory.dmp

Filesize
380KB

Download
memory/2508-81-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2508-86-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2508-87-0x00000000095F0000-0x000000000962C000-memory.dmp

Filesize
240KB

Download
memory/2792-12-0x0000000002DF0000-0x0000000002E56000-memory.dmp

Filesize
408KB

Download
memory/2792-14-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2792-1-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2792-0-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2792-2-0x0000000000380000-0x00000000003E6000-memory.dmp

Filesize
408KB

Download

Analysis

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