8bcf3984e139a272179407ef7f22e912d9e686d59db6dd92b36d1a546e73a34d

Analysis

max time kernel
156s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24-02-2024 06:19

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General

Target

a128a7ab31a41859c5a9e85868d4174f.exe
Size

974KB
MD5

a128a7ab31a41859c5a9e85868d4174f
SHA1

7d614c5f27d5bd60af17e023b68fb67f787c461d
SHA256

8bcf3984e139a272179407ef7f22e912d9e686d59db6dd92b36d1a546e73a34d
SHA512

202464ce77f88b6a8878dd63acf1ed92267179a9f1d75f747b20f12abae0acb7373d56d5f37b1c54613e662600b8c842b77fdc5a032431b2119a41f5554c774e
SSDEEP

24576:W9ai9wwr6RyuZ44G/MfR1FTNkdBAnlXG6+Z1mbXhmQW:xmr6RyuZNGUfRFkUlXF+Z1IXW

Score

9^/10

persistence upx

Malware Config

Signatures

Nirsoft 2 IoCs

resource	yara_rule
behavioral2/memory/400-7-0x0000000000400000-0x000000000045B000-memory.dmp	Nirsoft
behavioral2/memory/2996-18-0x0000000000400000-0x0000000000422000-memory.dmp	Nirsoft

Executes dropped EXE 2 IoCs

pid	Process
400	jfiag3g_gg.exe
2996	jfiag3g_gg.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00080000000230fa-3.dat	upx
behavioral2/memory/400-5-0x0000000000400000-0x000000000045B000-memory.dmp	upx
behavioral2/memory/400-7-0x0000000000400000-0x000000000045B000-memory.dmp	upx
behavioral2/files/0x00090000000230fa-11.dat	upx
behavioral2/memory/2996-12-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral2/memory/2996-18-0x0000000000400000-0x0000000000422000-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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\haleng = "C:\\Users\\Admin\\AppData\\Local\\Temp\\haleng.exe"	a128a7ab31a41859c5a9e85868d4174f.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
12	ip-api.com

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2996	jfiag3g_gg.exe
2996	jfiag3g_gg.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4008 wrote to memory of 400	4008	a128a7ab31a41859c5a9e85868d4174f.exe	86
PID 4008 wrote to memory of 400	4008	a128a7ab31a41859c5a9e85868d4174f.exe	86
PID 4008 wrote to memory of 400	4008	a128a7ab31a41859c5a9e85868d4174f.exe	86
PID 4008 wrote to memory of 2996	4008	a128a7ab31a41859c5a9e85868d4174f.exe	87
PID 4008 wrote to memory of 2996	4008	a128a7ab31a41859c5a9e85868d4174f.exe	87
PID 4008 wrote to memory of 2996	4008	a128a7ab31a41859c5a9e85868d4174f.exe	87

C:\Users\Admin\AppData\Local\Temp\a128a7ab31a41859c5a9e85868d4174f.exe
"C:\Users\Admin\AppData\Local\Temp\a128a7ab31a41859c5a9e85868d4174f.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4008
- C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
  C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
  2⤵
  - Executes dropped EXE
  PID:400
- C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
  C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:2996

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\fj4ghga23_fsa.txt

Filesize
31B

MD5
b7161c0845a64ff6d7345b67ff97f3b0

SHA1
d223f855da541fe8e4c1d5c50cb26da0a1deb5fc

SHA256
fe9e28ff0b652e22a124b0a05382bc1ac48cbd9c7c76ca647b0c9f8542888f66

SHA512
98d8971ff20ba256cf886a9db416ac9366d2c6ad4ff51a65bd7e539974dc93f4c897f92d8c9c0319c69b27eacf05cd350a0302828e63190b03457a0eda57f680

Download Submit
C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt

Filesize
1KB

MD5
ecc39ba30c7dc55213d4a8c5b32efc2a

SHA1
f9f949d431e2f691ab289f55eb7b0e6f3d8e7280

SHA256
02416088748abe86b4aa69d71d4e7ff50ac8ab76635eb41660ec3d7468e2e4b5

SHA512
9ba539bfc7b7fe1743537efcfc7fde3cdf83e0280fd4f0ea9e681c8db7c72f7904964b4608dbec65920b381e64588b5c44dd0321809e773fe35b9cb35f98b270

Download Submit
C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe

Filesize
184KB

MD5
7fee8223d6e4f82d6cd115a28f0b6d58

SHA1
1b89c25f25253df23426bd9ff6c9208f1202f58b

SHA256
a45317c374d54e322153afd73f0e90f1486638d77b7fd85746d091071bbecd59

SHA512
3ed900b83dd178637c2fd4e8444a899f17f12c4ec92a6f4de4fe544fe8d41b521c69b8f348343cb397d0e160f23e27429042d758b5fa5acac0bab5c3584bace4

Download Submit
C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe

Filesize
61KB

MD5
a6279ec92ff948760ce53bba817d6a77

SHA1
5345505e12f9e4c6d569a226d50e71b5a572dce2

SHA256
8b581869bf8944a8e0aa169adea2a4afe47434123da477132880aff6a5032181

SHA512
213cb374f1273c899e0c88a20c0101a7c28024ce5046a2e0d7898bd182d918288bb80367fea4454c437c057ff9ed4fffd42be48a13ca73653021a6d63e1cfa9c

Download Submit
memory/400-5-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/400-7-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2996-12-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2996-18-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download