e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0

Analysis

max time kernel
150s
max time network
145s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06/12/2022, 18:47

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General

Target

e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe
Size

191KB
MD5

b19c626641bd55b7051126ab7bd4914f
SHA1

3d7760017ce40a79ed3ef37a12e6680d65db0d08
SHA256

e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0
SHA512

12160ee1d87c62f544b50eb6bc7b0afb31d14db0cdecdc740b6e85cc4079f04961ef2443fe5432779c8c9758638fcc75af61c82c17584e10dbb29bcf84f34654
SSDEEP

3072:FhRkZpqJeb0DOpjf0KjfI75llhgyTh2A6ZW6VPetJYAUcByVxTKWvD8KBVz:FT0Qc0Or04IPlPd2AmVPYeAUcEvKWvDf

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
788	ynza.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000b000000012300-55.dat	upx
behavioral1/files/0x000b000000012300-56.dat	upx
behavioral1/files/0x000b000000012300-58.dat	upx
behavioral1/files/0x000b000000012300-60.dat	upx

Deletes itself 1 IoCs

pid	Process
1816	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe
2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\Currentversion\Run	ynza.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\{7B4F18C8-4FEF-AD4D-3A07-B8B71A0C9BAA} = "C:\\Users\\Admin\\AppData\\Roaming\\Yqygjo\\ynza.exe"	ynza.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2000 set thread context of 1816	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe	29

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Privacy	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe
788	ynza.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe
Token: SeSecurityPrivilege	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe
Token: SeSecurityPrivilege	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 788	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe	28
PID 2000 wrote to memory of 788	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe	28
PID 2000 wrote to memory of 788	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe	28
PID 2000 wrote to memory of 788	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe	28
PID 788 wrote to memory of 1132	788	ynza.exe	18
PID 788 wrote to memory of 1132	788	ynza.exe	18
PID 788 wrote to memory of 1132	788	ynza.exe	18
PID 788 wrote to memory of 1132	788	ynza.exe	18
PID 788 wrote to memory of 1132	788	ynza.exe	18
PID 788 wrote to memory of 1184	788	ynza.exe	17
PID 788 wrote to memory of 1184	788	ynza.exe	17
PID 788 wrote to memory of 1184	788	ynza.exe	17
PID 788 wrote to memory of 1184	788	ynza.exe	17
PID 788 wrote to memory of 1184	788	ynza.exe	17
PID 788 wrote to memory of 1224	788	ynza.exe	16
PID 788 wrote to memory of 1224	788	ynza.exe	16
PID 788 wrote to memory of 1224	788	ynza.exe	16
PID 788 wrote to memory of 1224	788	ynza.exe	16
PID 788 wrote to memory of 1224	788	ynza.exe	16
PID 788 wrote to memory of 2000	788	ynza.exe	27
PID 788 wrote to memory of 2000	788	ynza.exe	27
PID 788 wrote to memory of 2000	788	ynza.exe	27
PID 788 wrote to memory of 2000	788	ynza.exe	27
PID 788 wrote to memory of 2000	788	ynza.exe	27
PID 2000 wrote to memory of 1816	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe	29
PID 2000 wrote to memory of 1816	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe	29
PID 2000 wrote to memory of 1816	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe	29
PID 2000 wrote to memory of 1816	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe	29
PID 2000 wrote to memory of 1816	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe	29
PID 2000 wrote to memory of 1816	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe	29
PID 2000 wrote to memory of 1816	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe	29
PID 2000 wrote to memory of 1816	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe	29
PID 2000 wrote to memory of 1816	2000	e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe	29

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1224
- C:\Users\Admin\AppData\Local\Temp\e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe
  "C:\Users\Admin\AppData\Local\Temp\e5fbf1d5a97b905e3214559f9eab16e85dca7a83ef37fb3fa0ae89fa973286a0.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2000
- - C:\Users\Admin\AppData\Roaming\Yqygjo\ynza.exe
    "C:\Users\Admin\AppData\Roaming\Yqygjo\ynza.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:788
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpb01b2810.bat"
    3⤵
    - Deletes itself
    PID:1816

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1184

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1132

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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\tmpb01b2810.bat

Filesize
307B

MD5
b4ad18f7d572ac5db9fb2fcfff73f19d

SHA1
bf7cdc9762d242e734ff56fd57d4245622222f66

SHA256
0272cbf1ef3562a1f1257a6a5bae54a7760bb560869e80caf482099a78a9b231

SHA512
4f3e8b0b0b8ff3c97aec378299e21b5bbb36827a180efc083927882a0d56a65fb4708d06f86eb931a769664564ecbb7bcfa82047e75512aaf4a2a99de437ebf4

Download Submit
C:\Users\Admin\AppData\Roaming\Jeuq\emaqz.tiy

Filesize
398B

MD5
57658d1443b484f62dce0b6060ce3673

SHA1
6ff2c9cd9dbdf9412edf28d77d4371a34caa8d68

SHA256
32637a0c98d3b79b3561ce8e5255a5007904dfd42d1376d76d0fedefdc95bd9c

SHA512
1bda6318cb807942b60b581d26c7d2091945c27d9cbc9bf2d3297ba7faf39bdfcadd30b5bf9ddeff51fe03284cd6701a47c1e86f889efcf70522259a6b48a435

Download Submit
C:\Users\Admin\AppData\Roaming\Yqygjo\ynza.exe

Filesize
191KB

MD5
599bc0fdca78ec475ea1b337d8f29c06

SHA1
eb972705bb311f80c999ac87e9f795fdf75a9ab8

SHA256
667b090e5417feb4665e70e6e9a6787a5919c969d6c2858fc4b991a08981e234

SHA512
0aa440b63d97e0c7230fa294725d96138d44fb6ab4a9055c508bf07ec9002271417aa0c7793d7659c5fbe2e6c9c01646c25cd991ee87d52c77d4f1abebbf29ef

Download Submit
C:\Users\Admin\AppData\Roaming\Yqygjo\ynza.exe

Filesize
191KB

MD5
599bc0fdca78ec475ea1b337d8f29c06

SHA1
eb972705bb311f80c999ac87e9f795fdf75a9ab8

SHA256
667b090e5417feb4665e70e6e9a6787a5919c969d6c2858fc4b991a08981e234

SHA512
0aa440b63d97e0c7230fa294725d96138d44fb6ab4a9055c508bf07ec9002271417aa0c7793d7659c5fbe2e6c9c01646c25cd991ee87d52c77d4f1abebbf29ef

Download Submit
\Users\Admin\AppData\Roaming\Yqygjo\ynza.exe

Filesize
191KB

MD5
599bc0fdca78ec475ea1b337d8f29c06

SHA1
eb972705bb311f80c999ac87e9f795fdf75a9ab8

SHA256
667b090e5417feb4665e70e6e9a6787a5919c969d6c2858fc4b991a08981e234

SHA512
0aa440b63d97e0c7230fa294725d96138d44fb6ab4a9055c508bf07ec9002271417aa0c7793d7659c5fbe2e6c9c01646c25cd991ee87d52c77d4f1abebbf29ef

Download Submit
\Users\Admin\AppData\Roaming\Yqygjo\ynza.exe

Filesize
191KB

MD5
599bc0fdca78ec475ea1b337d8f29c06

SHA1
eb972705bb311f80c999ac87e9f795fdf75a9ab8

SHA256
667b090e5417feb4665e70e6e9a6787a5919c969d6c2858fc4b991a08981e234

SHA512
0aa440b63d97e0c7230fa294725d96138d44fb6ab4a9055c508bf07ec9002271417aa0c7793d7659c5fbe2e6c9c01646c25cd991ee87d52c77d4f1abebbf29ef

Download Submit
memory/788-100-0x0000000000400000-0x000000000289B000-memory.dmp

Filesize
36.6MB

Download
memory/788-99-0x0000000000400000-0x000000000289B000-memory.dmp

Filesize
36.6MB

Download
memory/1132-64-0x0000000001B50000-0x0000000001B85000-memory.dmp

Filesize
212KB

Download
memory/1132-66-0x0000000001B50000-0x0000000001B85000-memory.dmp

Filesize
212KB

Download
memory/1132-65-0x0000000001B50000-0x0000000001B85000-memory.dmp

Filesize
212KB

Download
memory/1132-63-0x0000000001B50000-0x0000000001B85000-memory.dmp

Filesize
212KB

Download
memory/1132-61-0x0000000001B50000-0x0000000001B85000-memory.dmp

Filesize
212KB

Download
memory/1184-69-0x0000000001B70000-0x0000000001BA5000-memory.dmp

Filesize
212KB

Download
memory/1184-70-0x0000000001B70000-0x0000000001BA5000-memory.dmp

Filesize
212KB

Download
memory/1184-71-0x0000000001B70000-0x0000000001BA5000-memory.dmp

Filesize
212KB

Download
memory/1184-72-0x0000000001B70000-0x0000000001BA5000-memory.dmp

Filesize
212KB

Download
memory/1224-77-0x00000000029E0000-0x0000000002A15000-memory.dmp

Filesize
212KB

Download
memory/1224-75-0x00000000029E0000-0x0000000002A15000-memory.dmp

Filesize
212KB

Download
memory/1224-76-0x00000000029E0000-0x0000000002A15000-memory.dmp

Filesize
212KB

Download
memory/1224-78-0x00000000029E0000-0x0000000002A15000-memory.dmp

Filesize
212KB

Download
memory/1816-92-0x0000000000050000-0x0000000000085000-memory.dmp

Filesize
212KB

Download
memory/1816-88-0x0000000000050000-0x0000000000085000-memory.dmp

Filesize
212KB

Download
memory/1816-91-0x0000000000050000-0x0000000000085000-memory.dmp

Filesize
212KB

Download
memory/1816-90-0x0000000000050000-0x0000000000085000-memory.dmp

Filesize
212KB

Download
memory/1816-96-0x0000000000050000-0x0000000000085000-memory.dmp

Filesize
212KB

Download
memory/2000-84-0x00000000028E0000-0x0000000002915000-memory.dmp

Filesize
212KB

Download
memory/2000-81-0x00000000028E0000-0x0000000002915000-memory.dmp

Filesize
212KB

Download
memory/2000-83-0x00000000028E0000-0x0000000002915000-memory.dmp

Filesize
212KB

Download
memory/2000-98-0x00000000028E0000-0x0000000002915000-memory.dmp

Filesize
212KB

Download
memory/2000-97-0x0000000000400000-0x000000000289B000-memory.dmp

Filesize
36.6MB

Download
memory/2000-54-0x0000000074F01000-0x0000000074F03000-memory.dmp

Filesize
8KB

Download
memory/2000-82-0x00000000028E0000-0x0000000002915000-memory.dmp

Filesize
212KB

Download