2c95de9e6b46f2382560a931bf88541ed8ef136f2f4d07456120c122a336a3ed

General

Target

b4992489e838aad870f8e50f6b4f8167.exe
Size

385KB
MD5

b4992489e838aad870f8e50f6b4f8167
SHA1

4188bceee5bb7b97487cd0ffea27f1f0ef7fbd04
SHA256

2c95de9e6b46f2382560a931bf88541ed8ef136f2f4d07456120c122a336a3ed
SHA512

990df0fc2fe022cd8722ca7378bcfc0ea1871980b2bf68a8514edc9eab41c4cfd3c51b43bbd3e3188b7e877261beb2442faeb8a94eb0d207fd47a896993f0044
SSDEEP

12288:T6O2u5ax+a5XkdvlWVkaYC3kMUjCCU40owgPUgq8Ul2B:uhhXC0Cax374QgsgfO2B

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2328	b4992489e838aad870f8e50f6b4f8167.exe

Executes dropped EXE 1 IoCs

pid	Process
2328	b4992489e838aad870f8e50f6b4f8167.exe

Loads dropped DLL 1 IoCs

pid	Process
2988	b4992489e838aad870f8e50f6b4f8167.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	b4992489e838aad870f8e50f6b4f8167.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 0f0000000100000014000000ce0e658aa3e847e467a147b3049191093d055e6f0b0000000100000034000000420061006c00740069006d006f007200650020004300790062006500720054007200750073007400200052006f006f007400000053000000010000002400000030223020060a2b06010401b13e01640130123010060a2b0601040182373c0101030200c0140000000100000014000000e59d5930824758ccacfa085436867b3ab5044df01d0000000100000010000000918ad43a9475f78bb5243de886d8103c09000000010000000c000000300a06082b06010505070301030000000100000014000000d4de20d05e66fc53fe1a50882c78db2852cae47420000000010000007b030000308203773082025fa0030201020204020000b9300d06092a864886f70d0101050500305a310b300906035504061302494531123010060355040a130942616c74696d6f726531133011060355040b130a43796265725472757374312230200603550403131942616c74696d6f7265204379626572547275737420526f6f74301e170d3030303531323138343630305a170d3235303531323233353930305a305a310b300906035504061302494531123010060355040a130942616c74696d6f726531133011060355040b130a43796265725472757374312230200603550403131942616c74696d6f7265204379626572547275737420526f6f7430820122300d06092a864886f70d01010105000382010f003082010a0282010100a304bb22ab983d57e826729ab579d429e2e1e89580b1b0e35b8e2b299a64dfa15dedb009056ddb282ece62a262feb488da12eb38eb219dc0412b01527b8877d31c8fc7bab988b56a09e773e81140a7d1ccca628d2de58f0ba650d2a850c328eaf5ab25878a9a961ca967b83f0cd5f7f952132fc21bd57070f08fc012ca06cb9ae1d9ca337a77d6f8ecb9f16844424813d2c0c2a4ae5e60feb6a605fcb4dd075902d459189863f5a563e0900c7d5db2067af385eaebd403ae5e843e5fff15ed69bcf939367275cf77524df3c9902cb93de5c923533f1f2498215c079929bdc63aece76e863a6b97746333bd681831f0788d76bffc9e8e5d2a86a74d90dc271a390203010001a3453043301d0603551d0e04160414e59d5930824758ccacfa085436867b3ab5044df030120603551d130101ff040830060101ff020103300e0603551d0f0101ff040403020106300d06092a864886f70d01010505000382010100850c5d8ee46f51684205a0ddbb4f27258403bdf764fd2dd730e3a41017ebda2929b6793f76f6191323b8100af958a4d46170bd04616a128a17d50abdc5bc307cd6e90c258d86404feccca37e38c637114feddd68318e4cd2b30174eebe755e07481a7f70ff165c84c07985b805fd7fbe6511a30fc002b4f852373904d5a9317a18bfa02af41299f7a34582e33c5ef59d9eb5c89e7c2ec8a49e4e08144b6dfd706d6b1a63bd64e61fb7cef0f29f2ebb1bb7f250887392c2e2e3168d9a3202ab8e18dde91011ee7e35ab90af3e30947ad0333da7650ff5fc8e9e62cf47442c015dbb1db532d247d2382ed0fe81dc326a1eb5ee3cd5fce7811d19c32442ea6339a9	b4992489e838aad870f8e50f6b4f8167.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	b4992489e838aad870f8e50f6b4f8167.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2988	b4992489e838aad870f8e50f6b4f8167.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2988	b4992489e838aad870f8e50f6b4f8167.exe
2328	b4992489e838aad870f8e50f6b4f8167.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 2328	2988	b4992489e838aad870f8e50f6b4f8167.exe	28
PID 2988 wrote to memory of 2328	2988	b4992489e838aad870f8e50f6b4f8167.exe	28
PID 2988 wrote to memory of 2328	2988	b4992489e838aad870f8e50f6b4f8167.exe	28
PID 2988 wrote to memory of 2328	2988	b4992489e838aad870f8e50f6b4f8167.exe	28

C:\Users\Admin\AppData\Local\Temp\b4992489e838aad870f8e50f6b4f8167.exe
"C:\Users\Admin\AppData\Local\Temp\b4992489e838aad870f8e50f6b4f8167.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Users\Admin\AppData\Local\Temp\b4992489e838aad870f8e50f6b4f8167.exe
  C:\Users\Admin\AppData\Local\Temp\b4992489e838aad870f8e50f6b4f8167.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\Tar1462.tmp

Filesize
175KB

MD5
dd73cead4b93366cf3465c8cd32e2796

SHA1
74546226dfe9ceb8184651e920d1dbfb432b314e

SHA256
a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

SHA512
ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

Download Submit
\Users\Admin\AppData\Local\Temp\b4992489e838aad870f8e50f6b4f8167.exe

Filesize
385KB

MD5
409dac78ccb23a234f7b14fc632f91ba

SHA1
ba3a9ace2238cceaf4de173afa0703d09de8f86e

SHA256
83649aa4331a95bff45436bffa00db6dc427dad50e63f209dff2d0af83aedf5e

SHA512
1506c548104bd47c900e41a940f289d0aeaa110d22b6839a9e2dcafc741ead6802e585f7389f7de5d2764b82733287d128258bb39852a985f14e5fa7985d8f78

Download Submit
memory/2328-20-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2328-17-0x0000000000350000-0x00000000003B6000-memory.dmp

Filesize
408KB

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

Filesize
240KB

Download
memory/2328-26-0x0000000001470000-0x00000000014CF000-memory.dmp

Filesize
380KB

Download
memory/2328-81-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2328-87-0x0000000007590000-0x00000000075CC000-memory.dmp

Filesize
240KB

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

Filesize
56KB

Download
memory/2988-14-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2988-0-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2988-12-0x0000000000390000-0x00000000003F6000-memory.dmp

Filesize
408KB

Download
memory/2988-1-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2988-2-0x0000000000320000-0x0000000000386000-memory.dmp

Filesize
408KB

Download

Analysis

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