aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8

General

Target

aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe
Size

347KB
MD5

03743b1e9feb3af7ea453ccba1b6384d
SHA1

43fa62eff73c5f272d7c2090a2e45f8805cefc28
SHA256

aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8
SHA512

7adccbf3328c2d022e1dc3c69d0d9ea112fbdca1b0965cea672b61aa6df10dbade1aa91731cb26ce4dc5c87442da004f892bbbe96767b6dca64190458fb3df5d
SSDEEP

6144:bqCSaCaTDTXmNOzCpjjhjNAW/g1sIYstrH1dAVZru/rqzfIBe/rUc19n:eZ4TDDmNOzKnDAWo1s5MV6VIzqTr/gc7

Score

10^/10

evasion persistence upx

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe

Executes dropped EXE 1 IoCs

pid	Process
4532	BC6C00D638627F3B.TMP

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000300000001e64b-136.dat	upx
behavioral2/files/0x000300000001e64b-135.dat	upx
behavioral2/memory/4532-140-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\FrameWork = "C:\\Windows\\system32\\WinMain.exe 6666"	aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WinMain.exe	aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe
File opened for modification	C:\Windows\SysWOW64\WinMain.exe	aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\dextor32.exe	BC6C00D638627F3B.TMP

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1244	aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 5084 wrote to memory of 4532	5084	aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe	80
PID 5084 wrote to memory of 4532	5084	aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe	80
PID 5084 wrote to memory of 4532	5084	aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe	80
PID 5084 wrote to memory of 4832	5084	aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe	81
PID 5084 wrote to memory of 4832	5084	aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe	81
PID 5084 wrote to memory of 4832	5084	aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe	81
PID 5084 wrote to memory of 1244	5084	aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe	82
PID 5084 wrote to memory of 1244	5084	aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe	82
PID 5084 wrote to memory of 1244	5084	aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe	82

C:\Users\Admin\AppData\Local\Temp\aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe
"C:\Users\Admin\AppData\Local\Temp\aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5084
- C:\Users\Admin\AppData\Local\Temp\BC6C00D638627F3B.TMP
  "C:\Users\Admin\AppData\Local\Temp\BC6C00D638627F3B.TMP"
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  PID:4532
- C:\Users\Admin\AppData\Local\Temp\aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe
  7777
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Adds Run key to start application
  - Drops file in System32 directory
  PID:4832
- C:\Users\Admin\AppData\Local\Temp\aa3facedc784dfff635aad8ed7fdfc7fbab2aa2e2cce80088a2e22e3054956c8.exe
  9999
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1244

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\BC6C00D638627F3B.TMP

Filesize
60KB

MD5
f0f21f57f47cda4c65d3ebe42586028c

SHA1
b217bdf7696cb358675fc3bd66305748f7cb5a53

SHA256
48a6cc3d3edf58401e6e51a370837102c3a84d7ef6b7ff76762e610be3b63f5d

SHA512
1dd5f0e3ea4ae83fbb5c82201741add2a45d70da89d217944b7eaf0c9c14376c6fff36995c3b2c45932b7905f9ba2eb04fa89826b53a67807740f1e706bea497

Download Submit
C:\Users\Admin\AppData\Local\Temp\BC6C00D638627F3B.TMP

Filesize
60KB

MD5
f0f21f57f47cda4c65d3ebe42586028c

SHA1
b217bdf7696cb358675fc3bd66305748f7cb5a53

SHA256
48a6cc3d3edf58401e6e51a370837102c3a84d7ef6b7ff76762e610be3b63f5d

SHA512
1dd5f0e3ea4ae83fbb5c82201741add2a45d70da89d217944b7eaf0c9c14376c6fff36995c3b2c45932b7905f9ba2eb04fa89826b53a67807740f1e706bea497

Download Submit
memory/1244-138-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/4532-140-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4832-139-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/5084-132-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/5084-141-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads