a429be26aeedcdd3fc02a1b693a5930608824e691700d550d7518505c1393f86

General

Target

b4a60bc6a1de739c0b7e8b4732f6ac00.exe
Size

907KB
MD5

b4a60bc6a1de739c0b7e8b4732f6ac00
SHA1

bbbe936b2d76ed686774ad47fd39180773279d98
SHA256

a429be26aeedcdd3fc02a1b693a5930608824e691700d550d7518505c1393f86
SHA512

49759caad6503f1f36d5b539cf6b04baf6e0b6ab597b5f3a0526b408940661fa286e0b0c59ff78d95cfe91ad7293e4957385aa1a5c02f04d104d996f31831d61
SSDEEP

12288:ojZP3eR7nbi4ozLbSvdOf4R5FXVI6hcrL7TlU21S3SjZl0+AejVDa/ZS1:qZfek4ofbBYI6irTlt10S1OrMa/ZS1

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2684	b4a60bc6a1de739c0b7e8b4732f6ac00.exe

Executes dropped EXE 1 IoCs

pid	Process
2684	b4a60bc6a1de739c0b7e8b4732f6ac00.exe

Loads dropped DLL 1 IoCs

pid	Process
2812	b4a60bc6a1de739c0b7e8b4732f6ac00.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	b4a60bc6a1de739c0b7e8b4732f6ac00.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	b4a60bc6a1de739c0b7e8b4732f6ac00.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 19000000010000001000000068cb42b035ea773e52ef50ecf50ec529030000000100000014000000d4de20d05e66fc53fe1a50882c78db2852cae47409000000010000000c000000300a06082b060105050703011d0000000100000010000000918ad43a9475f78bb5243de886d8103c140000000100000014000000e59d5930824758ccacfa085436867b3ab5044df053000000010000002400000030223020060a2b06010401b13e01640130123010060a2b0601040182373c0101030200c00b0000000100000034000000420061006c00740069006d006f007200650020004300790062006500720054007200750073007400200052006f006f00740000000f0000000100000014000000ce0e658aa3e847e467a147b3049191093d055e6f20000000010000007b030000308203773082025fa0030201020204020000b9300d06092a864886f70d0101050500305a310b300906035504061302494531123010060355040a130942616c74696d6f726531133011060355040b130a43796265725472757374312230200603550403131942616c74696d6f7265204379626572547275737420526f6f74301e170d3030303531323138343630305a170d3235303531323233353930305a305a310b300906035504061302494531123010060355040a130942616c74696d6f726531133011060355040b130a43796265725472757374312230200603550403131942616c74696d6f7265204379626572547275737420526f6f7430820122300d06092a864886f70d01010105000382010f003082010a0282010100a304bb22ab983d57e826729ab579d429e2e1e89580b1b0e35b8e2b299a64dfa15dedb009056ddb282ece62a262feb488da12eb38eb219dc0412b01527b8877d31c8fc7bab988b56a09e773e81140a7d1ccca628d2de58f0ba650d2a850c328eaf5ab25878a9a961ca967b83f0cd5f7f952132fc21bd57070f08fc012ca06cb9ae1d9ca337a77d6f8ecb9f16844424813d2c0c2a4ae5e60feb6a605fcb4dd075902d459189863f5a563e0900c7d5db2067af385eaebd403ae5e843e5fff15ed69bcf939367275cf77524df3c9902cb93de5c923533f1f2498215c079929bdc63aece76e863a6b97746333bd681831f0788d76bffc9e8e5d2a86a74d90dc271a390203010001a3453043301d0603551d0e04160414e59d5930824758ccacfa085436867b3ab5044df030120603551d130101ff040830060101ff020103300e0603551d0f0101ff040403020106300d06092a864886f70d01010505000382010100850c5d8ee46f51684205a0ddbb4f27258403bdf764fd2dd730e3a41017ebda2929b6793f76f6191323b8100af958a4d46170bd04616a128a17d50abdc5bc307cd6e90c258d86404feccca37e38c637114feddd68318e4cd2b30174eebe755e07481a7f70ff165c84c07985b805fd7fbe6511a30fc002b4f852373904d5a9317a18bfa02af41299f7a34582e33c5ef59d9eb5c89e7c2ec8a49e4e08144b6dfd706d6b1a63bd64e61fb7cef0f29f2ebb1bb7f250887392c2e2e3168d9a3202ab8e18dde91011ee7e35ab90af3e30947ad0333da7650ff5fc8e9e62cf47442c015dbb1db532d247d2382ed0fe81dc326a1eb5ee3cd5fce7811d19c32442ea6339a9	b4a60bc6a1de739c0b7e8b4732f6ac00.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2812	b4a60bc6a1de739c0b7e8b4732f6ac00.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2812	b4a60bc6a1de739c0b7e8b4732f6ac00.exe
2684	b4a60bc6a1de739c0b7e8b4732f6ac00.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2812 wrote to memory of 2684	2812	b4a60bc6a1de739c0b7e8b4732f6ac00.exe	29
PID 2812 wrote to memory of 2684	2812	b4a60bc6a1de739c0b7e8b4732f6ac00.exe	29
PID 2812 wrote to memory of 2684	2812	b4a60bc6a1de739c0b7e8b4732f6ac00.exe	29
PID 2812 wrote to memory of 2684	2812	b4a60bc6a1de739c0b7e8b4732f6ac00.exe	29

C:\Users\Admin\AppData\Local\Temp\b4a60bc6a1de739c0b7e8b4732f6ac00.exe
"C:\Users\Admin\AppData\Local\Temp\b4a60bc6a1de739c0b7e8b4732f6ac00.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Users\Admin\AppData\Local\Temp\b4a60bc6a1de739c0b7e8b4732f6ac00.exe
  C:\Users\Admin\AppData\Local\Temp\b4a60bc6a1de739c0b7e8b4732f6ac00.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system certificate store
  - Suspicious use of UnmapMainImage
  PID:2684

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

Loading Replay Monitor...

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\Tar81C4.tmp

Filesize
175KB

MD5
dd73cead4b93366cf3465c8cd32e2796

SHA1
74546226dfe9ceb8184651e920d1dbfb432b314e

SHA256
a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

SHA512
ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

Download Submit
\Users\Admin\AppData\Local\Temp\b4a60bc6a1de739c0b7e8b4732f6ac00.exe

Filesize
907KB

MD5
4e32ada7bf0684035d9010501d0fe90f

SHA1
d5c5d70f22735b250c9c616d6c6102d020507846

SHA256
823553bc12a2d4b39346a3efb770734321d6d9a873e0ca7e061ce3d425daf70d

SHA512
442ad1063b5f7d3f5d63b211ecac9a65277b707ee93d48489d2595187a58c3a20921243bb32e178ba3d5fd95b41b96e4aec263817d6a9fc0aaa2574dc37ae064

Download Submit
memory/2684-23-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2684-16-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2684-17-0x00000000014F0000-0x00000000015D8000-memory.dmp

Filesize
928KB

Download
memory/2684-24-0x0000000002F10000-0x0000000002FCB000-memory.dmp

Filesize
748KB

Download
memory/2684-81-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2684-82-0x000000000EC50000-0x000000000ECE8000-memory.dmp

Filesize
608KB

Download
memory/2812-12-0x0000000003260000-0x0000000003348000-memory.dmp

Filesize
928KB

Download
memory/2812-14-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2812-0-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2812-1-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/2812-2-0x0000000000300000-0x00000000003E8000-memory.dmp

Filesize
928KB

Download

Analysis

Sharing