44fcf8c63084b1b5bcdbb48cc2ae58dd19350ab30aec42920c7b7e78e749e422

General

Target

c1b32fa59d6ca6e2999807d2ffdedb5f.exe
Size

385KB
MD5

c1b32fa59d6ca6e2999807d2ffdedb5f
SHA1

4dd5add77ed375963824adca3944efa8a75ee863
SHA256

44fcf8c63084b1b5bcdbb48cc2ae58dd19350ab30aec42920c7b7e78e749e422
SHA512

e2c031c7c3f76fbc76a427f533d9a2229f816f94934db4f895976a6e7d6f6a6107c77eb59f0cadecd7d28795a5795d9a1e02bef441d22cb84c73092f5e4beea2
SSDEEP

12288:uDO2dWv4FiUQoB0FsBspI+MCG1J4S4FBX5B:uDdxnIsBgIBtD65B

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2504	c1b32fa59d6ca6e2999807d2ffdedb5f.exe

Executes dropped EXE 1 IoCs

pid	Process
2504	c1b32fa59d6ca6e2999807d2ffdedb5f.exe

Loads dropped DLL 1 IoCs

pid	Process
1640	c1b32fa59d6ca6e2999807d2ffdedb5f.exe

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

Web Service

T1102

flow	ioc
4	pastebin.com
3	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	c1b32fa59d6ca6e2999807d2ffdedb5f.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	c1b32fa59d6ca6e2999807d2ffdedb5f.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	c1b32fa59d6ca6e2999807d2ffdedb5f.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1640	c1b32fa59d6ca6e2999807d2ffdedb5f.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1640	c1b32fa59d6ca6e2999807d2ffdedb5f.exe
2504	c1b32fa59d6ca6e2999807d2ffdedb5f.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 2504	1640	c1b32fa59d6ca6e2999807d2ffdedb5f.exe	28
PID 1640 wrote to memory of 2504	1640	c1b32fa59d6ca6e2999807d2ffdedb5f.exe	28
PID 1640 wrote to memory of 2504	1640	c1b32fa59d6ca6e2999807d2ffdedb5f.exe	28
PID 1640 wrote to memory of 2504	1640	c1b32fa59d6ca6e2999807d2ffdedb5f.exe	28

C:\Users\Admin\AppData\Local\Temp\c1b32fa59d6ca6e2999807d2ffdedb5f.exe
"C:\Users\Admin\AppData\Local\Temp\c1b32fa59d6ca6e2999807d2ffdedb5f.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Users\Admin\AppData\Local\Temp\c1b32fa59d6ca6e2999807d2ffdedb5f.exe
  C:\Users\Admin\AppData\Local\Temp\c1b32fa59d6ca6e2999807d2ffdedb5f.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system certificate store
  - Suspicious use of UnmapMainImage
  PID:2504

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\Tar21BB.tmp

Filesize
175KB

MD5
dd73cead4b93366cf3465c8cd32e2796

SHA1
74546226dfe9ceb8184651e920d1dbfb432b314e

SHA256
a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

SHA512
ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

Download Submit
\Users\Admin\AppData\Local\Temp\c1b32fa59d6ca6e2999807d2ffdedb5f.exe

Filesize
385KB

MD5
425121a168c536ae951f70bc94077d61

SHA1
ae9ec6d25450b969f43827fccad9d873bdd26faf

SHA256
9044f6ae77891d46ab6fe131a684c162586c0a7bc3f662b9a398fbe0baabbd2e

SHA512
0b68e9a6971731ad0a14216dfdce745fdb970b13c1a747eab40ca93227a7bd8beccda1ba4319484f84b3f579798ea5e7257cf001cb450a41489d0cce3eb78b6b

Download Submit
memory/1640-1-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/1640-0-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1640-2-0x0000000000190000-0x00000000001F6000-memory.dmp

Filesize
408KB

Download
memory/1640-12-0x0000000000200000-0x0000000000266000-memory.dmp

Filesize
408KB

Download
memory/1640-14-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2504-23-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2504-28-0x0000000000390000-0x00000000003EF000-memory.dmp

Filesize
380KB

Download
memory/2504-20-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2504-17-0x0000000000230000-0x0000000000296000-memory.dmp

Filesize
408KB

Download
memory/2504-81-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2504-86-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2504-87-0x000000000ED10000-0x000000000ED4C000-memory.dmp

Filesize
240KB

Download
memory/2504-88-0x000000000ED10000-0x000000000ED4C000-memory.dmp

Filesize
240KB

Download

Analysis

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