23a98bb8683ecbadee3064d0a44c65c072024bf6a666e724a6dabb2c6dc9ffd7

Analysis

max time kernel
150s
max time network
143s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/12/2023, 16:02

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General

Target

7b15cd38555854481e1a671b7bb69e3e.exe
Size

223KB
MD5

7b15cd38555854481e1a671b7bb69e3e
SHA1

f0712727d0dc4dcd4a388289a31e751cd2197187
SHA256

23a98bb8683ecbadee3064d0a44c65c072024bf6a666e724a6dabb2c6dc9ffd7
SHA512

ed6f50859555434b2d58033400037edad0ca3bcc85fc71ababa5877568ba448775ef2de1793b0537411947f4b1ae43ffec0be570fb9c0f251a663381543ef528
SSDEEP

6144:al7hRvEGGmcjRXtS5kikL2UF5KA/Jfjk4+Red3:qxEfmERmkiD7A/Jfjx+RQ

Score

7^/10

persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1644	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2440	ugtak.exe

Loads dropped DLL 2 IoCs

pid	Process
2052	7b15cd38555854481e1a671b7bb69e3e.exe
2052	7b15cd38555854481e1a671b7bb69e3e.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2052-0-0x0000000000400000-0x0000000000813000-memory.dmp	upx
behavioral1/files/0x000a00000001225c-6.dat	upx
behavioral1/memory/2440-16-0x0000000000400000-0x0000000000813000-memory.dmp	upx
behavioral1/memory/2052-8-0x0000000007780000-0x0000000007B93000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\{6CF0A0C8-CEE0-AD4E-46DF-EAE75CAEC9FA} = "C:\\Users\\Admin\\AppData\\Roaming\\Haro\\ugtak.exe"	ugtak.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2052 set thread context of 1644	2052	7b15cd38555854481e1a671b7bb69e3e.exe	29

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Internet Explorer\Privacy	7b15cd38555854481e1a671b7bb69e3e.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	7b15cd38555854481e1a671b7bb69e3e.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe
2440	ugtak.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2052	7b15cd38555854481e1a671b7bb69e3e.exe
Token: SeSecurityPrivilege	2052	7b15cd38555854481e1a671b7bb69e3e.exe
Token: SeSecurityPrivilege	2052	7b15cd38555854481e1a671b7bb69e3e.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 2440	2052	7b15cd38555854481e1a671b7bb69e3e.exe	28
PID 2052 wrote to memory of 2440	2052	7b15cd38555854481e1a671b7bb69e3e.exe	28
PID 2052 wrote to memory of 2440	2052	7b15cd38555854481e1a671b7bb69e3e.exe	28
PID 2052 wrote to memory of 2440	2052	7b15cd38555854481e1a671b7bb69e3e.exe	28
PID 2440 wrote to memory of 1256	2440	ugtak.exe	10
PID 2440 wrote to memory of 1256	2440	ugtak.exe	10
PID 2440 wrote to memory of 1256	2440	ugtak.exe	10
PID 2440 wrote to memory of 1256	2440	ugtak.exe	10
PID 2440 wrote to memory of 1256	2440	ugtak.exe	10
PID 2440 wrote to memory of 1340	2440	ugtak.exe	9
PID 2440 wrote to memory of 1340	2440	ugtak.exe	9
PID 2440 wrote to memory of 1340	2440	ugtak.exe	9
PID 2440 wrote to memory of 1340	2440	ugtak.exe	9
PID 2440 wrote to memory of 1340	2440	ugtak.exe	9
PID 2440 wrote to memory of 1404	2440	ugtak.exe	3
PID 2440 wrote to memory of 1404	2440	ugtak.exe	3
PID 2440 wrote to memory of 1404	2440	ugtak.exe	3
PID 2440 wrote to memory of 1404	2440	ugtak.exe	3
PID 2440 wrote to memory of 1404	2440	ugtak.exe	3
PID 2440 wrote to memory of 2520	2440	ugtak.exe	7
PID 2440 wrote to memory of 2520	2440	ugtak.exe	7
PID 2440 wrote to memory of 2520	2440	ugtak.exe	7
PID 2440 wrote to memory of 2520	2440	ugtak.exe	7
PID 2440 wrote to memory of 2520	2440	ugtak.exe	7
PID 2440 wrote to memory of 2052	2440	ugtak.exe	27
PID 2440 wrote to memory of 2052	2440	ugtak.exe	27
PID 2440 wrote to memory of 2052	2440	ugtak.exe	27
PID 2440 wrote to memory of 2052	2440	ugtak.exe	27
PID 2440 wrote to memory of 2052	2440	ugtak.exe	27
PID 2052 wrote to memory of 1644	2052	7b15cd38555854481e1a671b7bb69e3e.exe	29
PID 2052 wrote to memory of 1644	2052	7b15cd38555854481e1a671b7bb69e3e.exe	29
PID 2052 wrote to memory of 1644	2052	7b15cd38555854481e1a671b7bb69e3e.exe	29
PID 2052 wrote to memory of 1644	2052	7b15cd38555854481e1a671b7bb69e3e.exe	29
PID 2052 wrote to memory of 1644	2052	7b15cd38555854481e1a671b7bb69e3e.exe	29
PID 2052 wrote to memory of 1644	2052	7b15cd38555854481e1a671b7bb69e3e.exe	29
PID 2052 wrote to memory of 1644	2052	7b15cd38555854481e1a671b7bb69e3e.exe	29
PID 2052 wrote to memory of 1644	2052	7b15cd38555854481e1a671b7bb69e3e.exe	29
PID 2052 wrote to memory of 1644	2052	7b15cd38555854481e1a671b7bb69e3e.exe	29

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1404
- C:\Users\Admin\AppData\Local\Temp\7b15cd38555854481e1a671b7bb69e3e.exe
  "C:\Users\Admin\AppData\Local\Temp\7b15cd38555854481e1a671b7bb69e3e.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2052
- - C:\Users\Admin\AppData\Roaming\Haro\ugtak.exe
    "C:\Users\Admin\AppData\Roaming\Haro\ugtak.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2440
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp71017061.bat"
    3⤵
    - Deletes itself
    PID:1644

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:2520

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1340

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1256

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp71017061.bat

Filesize
243B

MD5
324648c6c9cd283d35219b140c08440d

SHA1
7fdad0ef926b40cea2cfa3ccddad1d9258194a06

SHA256
debea47002481176ea7a812abbf2f3e4875b4704c136f37c37096fbfcd1a185e

SHA512
a0052b712fc196243c4255911f865bb1282362f9f45a69a65ded5ddfb65fa7923ecfb758afc4ce796c90de933dd4e8a37c99b529c5b6f38301da1e8dd6c15be6

Download Submit
C:\Users\Admin\AppData\Roaming\Vymiu\paow.yge

Filesize
366B

MD5
80ec17d467a6f96f54316d8b16039bdd

SHA1
a289dd9d422d8cec66f73b9ed704cf5ee2b985c4

SHA256
e46e5cbb17d0d849d2de000630860516d3fce19f6ab0218364d8821e079e66e3

SHA512
fd1d3a0d7de81c088cad4b2be014f5bbc9a22f7a205a99215182cb1e805925f50e8eb453bfbdef92ccd57e3c4cfc00385d83a2da2b1a4d59c5ed6cc3bbf32eb5

Download Submit
\Users\Admin\AppData\Roaming\Haro\ugtak.exe

Filesize
223KB

MD5
b1f1fdf0eb706831d86dff0f27a9b173

SHA1
9b4d89969a842c064c0ca9332617448356648be8

SHA256
774630e38e692e016b3477bd305c231635298adda4d4ce4c8cc6e0f7eeb92090

SHA512
f4e5325897ce8975a174973a1bb4657ce7905d07cafd3c026b099adc1f60b3eb3225edbb59aea61ba373ca933a4213218a27fcb473fb41d3084c22f3430ddc3b

Download Submit
memory/1256-20-0x0000000001DD0000-0x0000000001E0D000-memory.dmp

Filesize
244KB

Download
memory/1256-24-0x0000000001DD0000-0x0000000001E0D000-memory.dmp

Filesize
244KB

Download
memory/1256-22-0x0000000001DD0000-0x0000000001E0D000-memory.dmp

Filesize
244KB

Download
memory/1256-15-0x0000000001DD0000-0x0000000001E0D000-memory.dmp

Filesize
244KB

Download
memory/1256-18-0x0000000001DD0000-0x0000000001E0D000-memory.dmp

Filesize
244KB

Download
memory/1340-30-0x0000000000120000-0x000000000015D000-memory.dmp

Filesize
244KB

Download
memory/1340-28-0x0000000000120000-0x000000000015D000-memory.dmp

Filesize
244KB

Download
memory/1340-29-0x0000000000120000-0x000000000015D000-memory.dmp

Filesize
244KB

Download
memory/1340-31-0x0000000000120000-0x000000000015D000-memory.dmp

Filesize
244KB

Download
memory/1404-41-0x0000000002A70000-0x0000000002AAD000-memory.dmp

Filesize
244KB

Download
memory/1404-35-0x0000000002A70000-0x0000000002AAD000-memory.dmp

Filesize
244KB

Download
memory/1404-37-0x0000000002A70000-0x0000000002AAD000-memory.dmp

Filesize
244KB

Download
memory/1404-39-0x0000000002A70000-0x0000000002AAD000-memory.dmp

Filesize
244KB

Download
memory/1644-172-0x0000000077CA0000-0x0000000077CA1000-memory.dmp

Filesize
4KB

Download
memory/1644-175-0x0000000077CA0000-0x0000000077CA1000-memory.dmp

Filesize
4KB

Download
memory/1644-270-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/1644-171-0x0000000000050000-0x000000000008D000-memory.dmp

Filesize
244KB

Download
memory/1644-272-0x0000000000050000-0x000000000008D000-memory.dmp

Filesize
244KB

Download
memory/2052-56-0x0000000000290000-0x00000000002CD000-memory.dmp

Filesize
244KB

Download
memory/2052-72-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2052-0-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/2052-2-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/2052-3-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/2052-54-0x0000000000290000-0x00000000002CD000-memory.dmp

Filesize
244KB

Download
memory/2052-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2052-58-0x0000000000290000-0x00000000002CD000-memory.dmp

Filesize
244KB

Download
memory/2052-60-0x0000000000290000-0x00000000002CD000-memory.dmp

Filesize
244KB

Download
memory/2052-62-0x0000000000290000-0x00000000002CD000-memory.dmp

Filesize
244KB

Download
memory/2052-63-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2052-65-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2052-67-0x0000000077CA0000-0x0000000077CA1000-memory.dmp

Filesize
4KB

Download
memory/2052-68-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2052-70-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2052-8-0x0000000007780000-0x0000000007B93000-memory.dmp

Filesize
4.1MB

Download
memory/2052-74-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2052-76-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2052-78-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2052-80-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2052-82-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2052-156-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2052-26-0x0000000007780000-0x0000000007B93000-memory.dmp

Filesize
4.1MB

Download
memory/2052-169-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/2440-33-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/2440-16-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/2440-273-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/2520-45-0x0000000001B90000-0x0000000001BCD000-memory.dmp

Filesize
244KB

Download
memory/2520-51-0x0000000001B90000-0x0000000001BCD000-memory.dmp

Filesize
244KB

Download
memory/2520-49-0x0000000001B90000-0x0000000001BCD000-memory.dmp

Filesize
244KB

Download
memory/2520-47-0x0000000001B90000-0x0000000001BCD000-memory.dmp

Filesize
244KB

Download