d06b00aa6fcd16efeff90aa17ed2f7ef6ca92887a8559ea1fc8ec97091ce3df2

General

Target

c83d9c58d1f2d8ce340ccceff1d97dd1.exe
Size

385KB
MD5

c83d9c58d1f2d8ce340ccceff1d97dd1
SHA1

6aaf7b95db3239dbc28f438ba03c6721b21cce71
SHA256

d06b00aa6fcd16efeff90aa17ed2f7ef6ca92887a8559ea1fc8ec97091ce3df2
SHA512

86665fe53ed11bd69bb9fa8dd8e556451d9e4a26ebd08eb0d54caa355c115f4f143e286e2d42bc0e40ae14ff009289805e34206d5d4e58fe78b11b37c98b4047
SSDEEP

12288:T5GkrR81hbTbYL3Xud6X6tJ9TmKj7qpkB:TBtyFUL3Xu4X69TX76kB

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2368	c83d9c58d1f2d8ce340ccceff1d97dd1.exe

Executes dropped EXE 1 IoCs

pid	Process
2368	c83d9c58d1f2d8ce340ccceff1d97dd1.exe

Loads dropped DLL 1 IoCs

pid	Process
2060	c83d9c58d1f2d8ce340ccceff1d97dd1.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	c83d9c58d1f2d8ce340ccceff1d97dd1.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	c83d9c58d1f2d8ce340ccceff1d97dd1.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	c83d9c58d1f2d8ce340ccceff1d97dd1.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2060	c83d9c58d1f2d8ce340ccceff1d97dd1.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2060	c83d9c58d1f2d8ce340ccceff1d97dd1.exe
2368	c83d9c58d1f2d8ce340ccceff1d97dd1.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2060 wrote to memory of 2368	2060	c83d9c58d1f2d8ce340ccceff1d97dd1.exe	28
PID 2060 wrote to memory of 2368	2060	c83d9c58d1f2d8ce340ccceff1d97dd1.exe	28
PID 2060 wrote to memory of 2368	2060	c83d9c58d1f2d8ce340ccceff1d97dd1.exe	28
PID 2060 wrote to memory of 2368	2060	c83d9c58d1f2d8ce340ccceff1d97dd1.exe	28

C:\Users\Admin\AppData\Local\Temp\c83d9c58d1f2d8ce340ccceff1d97dd1.exe
"C:\Users\Admin\AppData\Local\Temp\c83d9c58d1f2d8ce340ccceff1d97dd1.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Users\Admin\AppData\Local\Temp\c83d9c58d1f2d8ce340ccceff1d97dd1.exe
  C:\Users\Admin\AppData\Local\Temp\c83d9c58d1f2d8ce340ccceff1d97dd1.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system certificate store
  - Suspicious use of UnmapMainImage
  PID:2368

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\Tar2F03.tmp

Filesize
175KB

MD5
dd73cead4b93366cf3465c8cd32e2796

SHA1
74546226dfe9ceb8184651e920d1dbfb432b314e

SHA256
a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

SHA512
ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

Download Submit
\Users\Admin\AppData\Local\Temp\c83d9c58d1f2d8ce340ccceff1d97dd1.exe

Filesize
385KB

MD5
bd638815c5cdbb7d2f129cdb7c3f8659

SHA1
6d3b4ee7e12ccd9debb94a4a0c7d8d2bc26c60d3

SHA256
e3eff15240579692edf806cd26c50b3246b9f65bdeb36e9625d86b57c5841271

SHA512
e6f2972cbddd98d9b73c73e07c53621cbd05f8eede75b833d2f6d9acf8783df7100daa172ed188d0d9c4f079836765abd2c522130f5cb9169c909c382c7fe9c5

Download Submit
memory/2060-14-0x0000000000390000-0x00000000003F6000-memory.dmp

Filesize
408KB

Download
memory/2060-0-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2060-13-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2060-3-0x0000000000320000-0x0000000000386000-memory.dmp

Filesize
408KB

Download
memory/2060-1-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2368-16-0x0000000000210000-0x0000000000276000-memory.dmp

Filesize
408KB

Download
memory/2368-18-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2368-23-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2368-26-0x0000000002B90000-0x0000000002BEF000-memory.dmp

Filesize
380KB

Download
memory/2368-81-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2368-86-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2368-87-0x0000000009610000-0x000000000964C000-memory.dmp

Filesize
240KB

Download

Analysis

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