b44bdbcba81c9c50ee1abef9a313bb2d8392eab1f7abf0f2b57bd343f75bf4b6

General

Target

b5e3e2cbf28ea36ca7bc786b592f14ff.exe
Size

385KB
MD5

b5e3e2cbf28ea36ca7bc786b592f14ff
SHA1

b3408b4d76b7bd8b7bb13959da96087e35f32894
SHA256

b44bdbcba81c9c50ee1abef9a313bb2d8392eab1f7abf0f2b57bd343f75bf4b6
SHA512

1f2fa932fdbfc4ffe6590984e891de34d11c0f4e3ee4f5e653ddffbf40d5f543e0f07221bafad834824826c4a113b275472a045c6e073578c588f6269ae7f4d3
SSDEEP

12288:PmQNtkGp+Up1PimA3+MYXA4jFEUmwi6w9E+wmEMB:PDkGraVOMYXbFr/iD98OB

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2328	b5e3e2cbf28ea36ca7bc786b592f14ff.exe

Executes dropped EXE 1 IoCs

pid	Process
2328	b5e3e2cbf28ea36ca7bc786b592f14ff.exe

Loads dropped DLL 1 IoCs

pid	Process
3020	b5e3e2cbf28ea36ca7bc786b592f14ff.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	b5e3e2cbf28ea36ca7bc786b592f14ff.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	b5e3e2cbf28ea36ca7bc786b592f14ff.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	b5e3e2cbf28ea36ca7bc786b592f14ff.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3020	b5e3e2cbf28ea36ca7bc786b592f14ff.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
3020	b5e3e2cbf28ea36ca7bc786b592f14ff.exe
2328	b5e3e2cbf28ea36ca7bc786b592f14ff.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3020 wrote to memory of 2328	3020	b5e3e2cbf28ea36ca7bc786b592f14ff.exe	28
PID 3020 wrote to memory of 2328	3020	b5e3e2cbf28ea36ca7bc786b592f14ff.exe	28
PID 3020 wrote to memory of 2328	3020	b5e3e2cbf28ea36ca7bc786b592f14ff.exe	28
PID 3020 wrote to memory of 2328	3020	b5e3e2cbf28ea36ca7bc786b592f14ff.exe	28

C:\Users\Admin\AppData\Local\Temp\b5e3e2cbf28ea36ca7bc786b592f14ff.exe
"C:\Users\Admin\AppData\Local\Temp\b5e3e2cbf28ea36ca7bc786b592f14ff.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Users\Admin\AppData\Local\Temp\b5e3e2cbf28ea36ca7bc786b592f14ff.exe
  C:\Users\Admin\AppData\Local\Temp\b5e3e2cbf28ea36ca7bc786b592f14ff.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system certificate store
  - Suspicious use of UnmapMainImage
  PID:2328

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\Tar3EAD.tmp

Filesize
175KB

MD5
dd73cead4b93366cf3465c8cd32e2796

SHA1
74546226dfe9ceb8184651e920d1dbfb432b314e

SHA256
a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

SHA512
ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

Download Submit
\Users\Admin\AppData\Local\Temp\b5e3e2cbf28ea36ca7bc786b592f14ff.exe

Filesize
385KB

MD5
9ed90df799fbc09e592779ad3b47cbb3

SHA1
06d12531e34a5296a00b020b08c4ba9471ec0744

SHA256
95a0a1c160a24ec7288e6282596f74d9c45bcd525dffd3c3fa261f450216833a

SHA512
92ee22e39e980b39bebc24d4fa3d1ed1708fac8ebb83700333bef60cea27feefe50f9c350a59d268ce85fb1cb22bf21784c3baa630deade242add5bb4b9b0ae7

Download Submit
memory/2328-16-0x0000000000350000-0x00000000003B6000-memory.dmp

Filesize
408KB

Download
memory/2328-23-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2328-22-0x0000000002CB0000-0x0000000002D0F000-memory.dmp

Filesize
380KB

Download
memory/2328-80-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2328-83-0x000000000D610000-0x000000000D64C000-memory.dmp

Filesize
240KB

Download
memory/2328-86-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3020-0-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/3020-12-0x0000000001470000-0x00000000014D6000-memory.dmp

Filesize
408KB

Download
memory/3020-14-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/3020-2-0x0000000000240000-0x00000000002A6000-memory.dmp

Filesize
408KB

Download
memory/3020-1-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download

Analysis

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