b49f5ab20ed62954cee07c1a21b5f04b482becf1d7fad124a26ecc523da4490c

General

Target

b5fac17dfc00e5e1bb1549b7f8ad9e11.exe
Size

385KB
MD5

b5fac17dfc00e5e1bb1549b7f8ad9e11
SHA1

b615207047889306e8bce2ad98af924390762c87
SHA256

b49f5ab20ed62954cee07c1a21b5f04b482becf1d7fad124a26ecc523da4490c
SHA512

2d548299f91aa5a26cea5ba94759e483d06a4ef490bc5931e87591beb9483903d01b2125e33f8149dce3d957d6d18d4b78964f803c067a10f4561c9396fd955d
SSDEEP

6144:u9X2ghurkRsgYJcTRbaUxdE+A4IMy3aAMRbBDfTK9tyXph+WvoEdSB:u9X2ghJFNE+tdY/4DfTK9sppvH0B

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2392	b5fac17dfc00e5e1bb1549b7f8ad9e11.exe

Executes dropped EXE 1 IoCs

pid	Process
2392	b5fac17dfc00e5e1bb1549b7f8ad9e11.exe

Loads dropped DLL 1 IoCs

pid	Process
2216	b5fac17dfc00e5e1bb1549b7f8ad9e11.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
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	b5fac17dfc00e5e1bb1549b7f8ad9e11.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	b5fac17dfc00e5e1bb1549b7f8ad9e11.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474	b5fac17dfc00e5e1bb1549b7f8ad9e11.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2216	b5fac17dfc00e5e1bb1549b7f8ad9e11.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2216	b5fac17dfc00e5e1bb1549b7f8ad9e11.exe
2392	b5fac17dfc00e5e1bb1549b7f8ad9e11.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2216 wrote to memory of 2392	2216	b5fac17dfc00e5e1bb1549b7f8ad9e11.exe	28
PID 2216 wrote to memory of 2392	2216	b5fac17dfc00e5e1bb1549b7f8ad9e11.exe	28
PID 2216 wrote to memory of 2392	2216	b5fac17dfc00e5e1bb1549b7f8ad9e11.exe	28
PID 2216 wrote to memory of 2392	2216	b5fac17dfc00e5e1bb1549b7f8ad9e11.exe	28

C:\Users\Admin\AppData\Local\Temp\b5fac17dfc00e5e1bb1549b7f8ad9e11.exe
"C:\Users\Admin\AppData\Local\Temp\b5fac17dfc00e5e1bb1549b7f8ad9e11.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2216
- C:\Users\Admin\AppData\Local\Temp\b5fac17dfc00e5e1bb1549b7f8ad9e11.exe
  C:\Users\Admin\AppData\Local\Temp\b5fac17dfc00e5e1bb1549b7f8ad9e11.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system certificate store
  - Suspicious use of UnmapMainImage
  PID:2392

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\Tar26D9.tmp

Filesize
175KB

MD5
dd73cead4b93366cf3465c8cd32e2796

SHA1
74546226dfe9ceb8184651e920d1dbfb432b314e

SHA256
a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

SHA512
ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

Download Submit
\Users\Admin\AppData\Local\Temp\b5fac17dfc00e5e1bb1549b7f8ad9e11.exe

Filesize
385KB

MD5
410c43c4b42d22313450fe7fadeff1e5

SHA1
9825516cc105caae1851dad57b25a8787f97ca33

SHA256
c2540812918806d17ae8eff24f4f630023c0e1d0c43271b50f0a68eef4f760e8

SHA512
cb3cc351fb0f5978dcfcc432bb7e9c673b891c03407c150524f66763547161393fd190f1d2c9e26bae007a0fa084fee4659615e4d96f4c49972ab70bc8c5f764

Download Submit
memory/2216-2-0x0000000000210000-0x0000000000276000-memory.dmp

Filesize
408KB

Download
memory/2216-0-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2216-12-0x0000000001470000-0x00000000014D6000-memory.dmp

Filesize
408KB

Download
memory/2216-14-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2216-1-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2392-17-0x0000000000240000-0x00000000002A6000-memory.dmp

Filesize
408KB

Download
memory/2392-29-0x00000000014B0000-0x000000000150F000-memory.dmp

Filesize
380KB

Download
memory/2392-23-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2392-20-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2392-81-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2392-86-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2392-87-0x00000000085F0000-0x000000000862C000-memory.dmp

Filesize
240KB

Download

Analysis

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